Home / 657,046.13-985,675.82-257,470.29

Finding the Fourth Proportional to 657,046.13, 985,675.82 and 257,470.29

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Solution

The fourth proportional to 657,046.13, 985,675.82 and 257,470.29 is: 386,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,046.13 : 985,675.82 = 257,470.29 : x
  2. Step 2: Convert to fraction form
    657,046.13/985,675.82 = 257,470.29/x
  3. Step 3: Cross multiply
    657,046.13x = 985,675.82 × 257,470.29
  4. Step 4: Simplify right side
    657,046.13x = 253,782,237,934.04
  5. Step 5: Solve for x
    x = 253,782,237,934.04/657,046.13
  6. Step 6: Final answer
    x = 386,247.22

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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.