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Finding the Fourth Proportional to 657,710.55, 907,717.14 and 547,133.85

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Solution

The fourth proportional to 657,710.55, 907,717.14 and 547,133.85 is: 755,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,710.55 : 907,717.14 = 547,133.85 : x
  2. Step 2: Convert to fraction form
    657,710.55/907,717.14 = 547,133.85/x
  3. Step 3: Cross multiply
    657,710.55x = 907,717.14 × 547,133.85
  4. Step 4: Simplify right side
    657,710.55x = 496,642,773,519.19
  5. Step 5: Solve for x
    x = 496,642,773,519.19/657,710.55
  6. Step 6: Final answer
    x = 755,108.42

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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.