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Finding the Fourth Proportional to 462,060.59, 640,905.75 and 449,770.86

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Solution

The fourth proportional to 462,060.59, 640,905.75 and 449,770.86 is: 623,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,060.59 : 640,905.75 = 449,770.86 : x
  2. Step 2: Convert to fraction form
    462,060.59/640,905.75 = 449,770.86/x
  3. Step 3: Cross multiply
    462,060.59x = 640,905.75 × 449,770.86
  4. Step 4: Simplify right side
    462,060.59x = 288,260,730,356.45
  5. Step 5: Solve for x
    x = 288,260,730,356.45/462,060.59
  6. Step 6: Final answer
    x = 623,859.16

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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.