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Finding the Fourth Proportional to 636,195.60, 954,001.80 and 281,026.80

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Solution

The fourth proportional to 636,195.60, 954,001.80 and 281,026.80 is: 421,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,195.60 : 954,001.80 = 281,026.80 : x
  2. Step 2: Convert to fraction form
    636,195.60/954,001.80 = 281,026.80/x
  3. Step 3: Cross multiply
    636,195.60x = 954,001.80 × 281,026.80
  4. Step 4: Simplify right side
    636,195.60x = 268,100,073,048.24
  5. Step 5: Solve for x
    x = 268,100,073,048.24/636,195.60
  6. Step 6: Final answer
    x = 421,411.39

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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.