Home / 766,243.10-1,149,486.15-260,851.70

Finding the Fourth Proportional to 766,243.10, 1,149,486.15 and 260,851.70

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Solution

The fourth proportional to 766,243.10, 1,149,486.15 and 260,851.70 is: 391,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,243.10 : 1,149,486.15 = 260,851.70 : x
  2. Step 2: Convert to fraction form
    766,243.10/1,149,486.15 = 260,851.70/x
  3. Step 3: Cross multiply
    766,243.10x = 1,149,486.15 × 260,851.70
  4. Step 4: Simplify right side
    766,243.10x = 299,845,416,353.96
  5. Step 5: Solve for x
    x = 299,845,416,353.96/766,243.10
  6. Step 6: Final answer
    x = 391,318.91

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Double scale
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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.