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Finding the Fourth Proportional to 523,951.88, 723,053.60 and 285,487.88

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Solution

The fourth proportional to 523,951.88, 723,053.60 and 285,487.88 is: 393,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,951.88 : 723,053.60 = 285,487.88 : x
  2. Step 2: Convert to fraction form
    523,951.88/723,053.60 = 285,487.88/x
  3. Step 3: Cross multiply
    523,951.88x = 723,053.60 × 285,487.88
  4. Step 4: Simplify right side
    523,951.88x = 206,423,034,347.66
  5. Step 5: Solve for x
    x = 206,423,034,347.66/523,951.88
  6. Step 6: Final answer
    x = 393,973.27

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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.