Home / 657,743.76-907,686.38-355,937.76

Finding the Fourth Proportional to 657,743.76, 907,686.38 and 355,937.76

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Solution

The fourth proportional to 657,743.76, 907,686.38 and 355,937.76 is: 491,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,743.76 : 907,686.38 = 355,937.76 : x
  2. Step 2: Convert to fraction form
    657,743.76/907,686.38 = 355,937.76/x
  3. Step 3: Cross multiply
    657,743.76x = 907,686.38 × 355,937.76
  4. Step 4: Simplify right side
    657,743.76x = 323,079,856,879.71
  5. Step 5: Solve for x
    x = 323,079,856,879.71/657,743.76
  6. Step 6: Final answer
    x = 491,194.10

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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.