Home / 1,108,230.80-1,662,346.20-398,330.60

Finding the Fourth Proportional to 1,108,230.80, 1,662,346.20 and 398,330.60

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Solution

The fourth proportional to 1,108,230.80, 1,662,346.20 and 398,330.60 is: 597,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,230.80 : 1,662,346.20 = 398,330.60 : x
  2. Step 2: Convert to fraction form
    1,108,230.80/1,662,346.20 = 398,330.60/x
  3. Step 3: Cross multiply
    1,108,230.80x = 1,662,346.20 × 398,330.60
  4. Step 4: Simplify right side
    1,108,230.80x = 662,163,359,253.72
  5. Step 5: Solve for x
    x = 662,163,359,253.72/1,108,230.80
  6. Step 6: Final answer
    x = 597,495.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.