Home / 907,363.80-1,361,045.70-309,000.60

Finding the Fourth Proportional to 907,363.80, 1,361,045.70 and 309,000.60

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Solution

The fourth proportional to 907,363.80, 1,361,045.70 and 309,000.60 is: 463,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,363.80 : 1,361,045.70 = 309,000.60 : x
  2. Step 2: Convert to fraction form
    907,363.80/1,361,045.70 = 309,000.60/x
  3. Step 3: Cross multiply
    907,363.80x = 1,361,045.70 × 309,000.60
  4. Step 4: Simplify right side
    907,363.80x = 420,563,937,927.42
  5. Step 5: Solve for x
    x = 420,563,937,927.42/907,363.80
  6. Step 6: Final answer
    x = 463,500.90

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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.