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Finding the Fourth Proportional to 625,753.96, 863,476.50 and 384,046.72

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Solution

The fourth proportional to 625,753.96, 863,476.50 and 384,046.72 is: 529,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,753.96 : 863,476.50 = 384,046.72 : x
  2. Step 2: Convert to fraction form
    625,753.96/863,476.50 = 384,046.72/x
  3. Step 3: Cross multiply
    625,753.96x = 863,476.50 × 384,046.72
  4. Step 4: Simplify right side
    625,753.96x = 331,615,317,622.08
  5. Step 5: Solve for x
    x = 331,615,317,622.08/625,753.96
  6. Step 6: Final answer
    x = 529,945.22

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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.