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Finding the Fourth Proportional to 648,034.66, 894,330.82 and 361,560.96

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Solution

The fourth proportional to 648,034.66, 894,330.82 and 361,560.96 is: 498,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,034.66 : 894,330.82 = 361,560.96 : x
  2. Step 2: Convert to fraction form
    648,034.66/894,330.82 = 361,560.96/x
  3. Step 3: Cross multiply
    648,034.66x = 894,330.82 × 361,560.96
  4. Step 4: Simplify right side
    648,034.66x = 323,355,109,836.79
  5. Step 5: Solve for x
    x = 323,355,109,836.79/648,034.66
  6. Step 6: Final answer
    x = 498,978.11

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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.