Home / 1,107,694.80-1,661,542.20-359,816.40

Finding the Fourth Proportional to 1,107,694.80, 1,661,542.20 and 359,816.40

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Solution

The fourth proportional to 1,107,694.80, 1,661,542.20 and 359,816.40 is: 539,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,694.80 : 1,661,542.20 = 359,816.40 : x
  2. Step 2: Convert to fraction form
    1,107,694.80/1,661,542.20 = 359,816.40/x
  3. Step 3: Cross multiply
    1,107,694.80x = 1,661,542.20 × 359,816.40
  4. Step 4: Simplify right side
    1,107,694.80x = 597,850,132,852.08
  5. Step 5: Solve for x
    x = 597,850,132,852.08/1,107,694.80
  6. Step 6: Final answer
    x = 539,724.60

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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.