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Finding the Fourth Proportional to 657,604.28, 907,493.88 and 355,798.28

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Solution

The fourth proportional to 657,604.28, 907,493.88 and 355,798.28 is: 491,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,604.28 : 907,493.88 = 355,798.28 : x
  2. Step 2: Convert to fraction form
    657,604.28/907,493.88 = 355,798.28/x
  3. Step 3: Cross multiply
    657,604.28x = 907,493.88 × 355,798.28
  4. Step 4: Simplify right side
    657,604.28x = 322,884,761,614.53
  5. Step 5: Solve for x
    x = 322,884,761,614.53/657,604.28
  6. Step 6: Final answer
    x = 491,001.61

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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.