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Finding the Fourth Proportional to 384,802.90, 531,177.82 and 344,446.86

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Solution

The fourth proportional to 384,802.90, 531,177.82 and 344,446.86 is: 475,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,802.90 : 531,177.82 = 344,446.86 : x
  2. Step 2: Convert to fraction form
    384,802.90/531,177.82 = 344,446.86/x
  3. Step 3: Cross multiply
    384,802.90x = 531,177.82 × 344,446.86
  4. Step 4: Simplify right side
    384,802.90x = 182,962,532,200.65
  5. Step 5: Solve for x
    x = 182,962,532,200.65/384,802.90
  6. Step 6: Final answer
    x = 475,470.77

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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.