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Finding the Fourth Proportional to 515,632.59, 773,469.86 and 245,621.93

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Solution

The fourth proportional to 515,632.59, 773,469.86 and 245,621.93 is: 368,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,632.59 : 773,469.86 = 245,621.93 : x
  2. Step 2: Convert to fraction form
    515,632.59/773,469.86 = 245,621.93/x
  3. Step 3: Cross multiply
    515,632.59x = 773,469.86 × 245,621.93
  4. Step 4: Simplify right side
    515,632.59x = 189,981,154,714.57
  5. Step 5: Solve for x
    x = 189,981,154,714.57/515,632.59
  6. Step 6: Final answer
    x = 368,442.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.