Home / 766,243.60-1,149,486.90-260,852.20

Finding the Fourth Proportional to 766,243.60, 1,149,486.90 and 260,852.20

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Solution

The fourth proportional to 766,243.60, 1,149,486.90 and 260,852.20 is: 391,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,243.60 : 1,149,486.90 = 260,852.20 : x
  2. Step 2: Convert to fraction form
    766,243.60/1,149,486.90 = 260,852.20/x
  3. Step 3: Cross multiply
    766,243.60x = 1,149,486.90 × 260,852.20
  4. Step 4: Simplify right side
    766,243.60x = 299,846,186,736.18
  5. Step 5: Solve for x
    x = 299,846,186,736.18/766,243.60
  6. Step 6: Final answer
    x = 391,319.66

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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.