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Finding the Fourth Proportional to 562,042.62, 775,264.23 and 392,214.78

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Solution

The fourth proportional to 562,042.62, 775,264.23 and 392,214.78 is: 541,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,042.62 : 775,264.23 = 392,214.78 : x
  2. Step 2: Convert to fraction form
    562,042.62/775,264.23 = 392,214.78/x
  3. Step 3: Cross multiply
    562,042.62x = 775,264.23 × 392,214.78
  4. Step 4: Simplify right side
    562,042.62x = 304,070,089,411.32
  5. Step 5: Solve for x
    x = 304,070,089,411.32/562,042.62
  6. Step 6: Final answer
    x = 541,008.95

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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.