Home / 758,774.20-1,138,226.10-260,138.20

Finding the Fourth Proportional to 758,774.20, 1,138,226.10 and 260,138.20

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Solution

The fourth proportional to 758,774.20, 1,138,226.10 and 260,138.20 is: 390,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,774.20 : 1,138,226.10 = 260,138.20 : x
  2. Step 2: Convert to fraction form
    758,774.20/1,138,226.10 = 260,138.20/x
  3. Step 3: Cross multiply
    758,774.20x = 1,138,226.10 × 260,138.20
  4. Step 4: Simplify right side
    758,774.20x = 296,096,088,847.02
  5. Step 5: Solve for x
    x = 296,096,088,847.02/758,774.20
  6. Step 6: Final answer
    x = 390,229.52

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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.