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Finding the Fourth Proportional to 657,057.72, 907,150.13 and 503,801.34

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Solution

The fourth proportional to 657,057.72, 907,150.13 and 503,801.34 is: 695,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,057.72 : 907,150.13 = 503,801.34 : x
  2. Step 2: Convert to fraction form
    657,057.72/907,150.13 = 503,801.34/x
  3. Step 3: Cross multiply
    657,057.72x = 907,150.13 × 503,801.34
  4. Step 4: Simplify right side
    657,057.72x = 457,023,457,531.57
  5. Step 5: Solve for x
    x = 457,023,457,531.57/657,057.72
  6. Step 6: Final answer
    x = 695,560.59

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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.