Home / 657,742.52-907,685.48-355,936.52

Finding the Fourth Proportional to 657,742.52, 907,685.48 and 355,936.52

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Solution

The fourth proportional to 657,742.52, 907,685.48 and 355,936.52 is: 491,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,742.52 : 907,685.48 = 355,936.52 : x
  2. Step 2: Convert to fraction form
    657,742.52/907,685.48 = 355,936.52/x
  3. Step 3: Cross multiply
    657,742.52x = 907,685.48 × 355,936.52
  4. Step 4: Simplify right side
    657,742.52x = 323,078,411,005.73
  5. Step 5: Solve for x
    x = 323,078,411,005.73/657,742.52
  6. Step 6: Final answer
    x = 491,192.83

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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.