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Finding the Fourth Proportional to 636,120.80, 954,181.20 and 608,818.40

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Solution

The fourth proportional to 636,120.80, 954,181.20 and 608,818.40 is: 913,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,120.80 : 954,181.20 = 608,818.40 : x
  2. Step 2: Convert to fraction form
    636,120.80/954,181.20 = 608,818.40/x
  3. Step 3: Cross multiply
    636,120.80x = 954,181.20 × 608,818.40
  4. Step 4: Simplify right side
    636,120.80x = 580,923,071,494.08
  5. Step 5: Solve for x
    x = 580,923,071,494.08/636,120.80
  6. Step 6: Final answer
    x = 913,227.60

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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.