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Finding the Fourth Proportional to 636,334.20, 954,501.30 and 281,165.40

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Solution

The fourth proportional to 636,334.20, 954,501.30 and 281,165.40 is: 421,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,334.20 : 954,501.30 = 281,165.40 : x
  2. Step 2: Convert to fraction form
    636,334.20/954,501.30 = 281,165.40/x
  3. Step 3: Cross multiply
    636,334.20x = 954,501.30 × 281,165.40
  4. Step 4: Simplify right side
    636,334.20x = 268,372,739,815.02
  5. Step 5: Solve for x
    x = 268,372,739,815.02/636,334.20
  6. Step 6: Final answer
    x = 421,748.10

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Double scale
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Similar ratio
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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.