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Finding the Fourth Proportional to 522,524.93, 721,151.10 and 307,684.98

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Solution

The fourth proportional to 522,524.93, 721,151.10 and 307,684.98 is: 424,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,524.93 : 721,151.10 = 307,684.98 : x
  2. Step 2: Convert to fraction form
    522,524.93/721,151.10 = 307,684.98/x
  3. Step 3: Cross multiply
    522,524.93x = 721,151.10 × 307,684.98
  4. Step 4: Simplify right side
    522,524.93x = 221,887,361,780.48
  5. Step 5: Solve for x
    x = 221,887,361,780.48/522,524.93
  6. Step 6: Final answer
    x = 424,644.55

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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.