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Finding the Fourth Proportional to 443,221.02, 615,774.24 and 437,906.61

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Solution

The fourth proportional to 443,221.02, 615,774.24 and 437,906.61 is: 608,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,221.02 : 615,774.24 = 437,906.61 : x
  2. Step 2: Convert to fraction form
    443,221.02/615,774.24 = 437,906.61/x
  3. Step 3: Cross multiply
    443,221.02x = 615,774.24 × 437,906.61
  4. Step 4: Simplify right side
    443,221.02x = 269,651,609,963.73
  5. Step 5: Solve for x
    x = 269,651,609,963.73/443,221.02
  6. Step 6: Final answer
    x = 608,390.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.