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Finding the Fourth Proportional to 636,219.30, 954,279.27 and 281,244.90

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Solution

The fourth proportional to 636,219.30, 954,279.27 and 281,244.90 is: 421,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,219.30 : 954,279.27 = 281,244.90 : x
  2. Step 2: Convert to fraction form
    636,219.30/954,279.27 = 281,244.90/x
  3. Step 3: Cross multiply
    636,219.30x = 954,279.27 × 281,244.90
  4. Step 4: Simplify right side
    636,219.30x = 268,386,177,863.22
  5. Step 5: Solve for x
    x = 268,386,177,863.22/636,219.30
  6. Step 6: Final answer
    x = 421,845.39

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1.5x scale

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.