Home / 657,942.04-907,581.03-396,115.07

Finding the Fourth Proportional to 657,942.04, 907,581.03 and 396,115.07

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Solution

The fourth proportional to 657,942.04, 907,581.03 and 396,115.07 is: 546,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,942.04 : 907,581.03 = 396,115.07 : x
  2. Step 2: Convert to fraction form
    657,942.04/907,581.03 = 396,115.07/x
  3. Step 3: Cross multiply
    657,942.04x = 907,581.03 × 396,115.07
  4. Step 4: Simplify right side
    657,942.04x = 359,506,523,229.12
  5. Step 5: Solve for x
    x = 359,506,523,229.12/657,942.04
  6. Step 6: Final answer
    x = 546,410.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.