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Finding the Fourth Proportional to 657,737.52, 907,678.58 and 355,931.52

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Solution

The fourth proportional to 657,737.52, 907,678.58 and 355,931.52 is: 491,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,737.52 : 907,678.58 = 355,931.52 : x
  2. Step 2: Convert to fraction form
    657,737.52/907,678.58 = 355,931.52/x
  3. Step 3: Cross multiply
    657,737.52x = 907,678.58 × 355,931.52
  4. Step 4: Simplify right side
    657,737.52x = 323,071,416,650.84
  5. Step 5: Solve for x
    x = 323,071,416,650.84/657,737.52
  6. Step 6: Final answer
    x = 491,185.93

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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.