Home / 766,475.80-1,149,713.70-366,910.90

Finding the Fourth Proportional to 766,475.80, 1,149,713.70 and 366,910.90

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Solution

The fourth proportional to 766,475.80, 1,149,713.70 and 366,910.90 is: 550,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,475.80 : 1,149,713.70 = 366,910.90 : x
  2. Step 2: Convert to fraction form
    766,475.80/1,149,713.70 = 366,910.90/x
  3. Step 3: Cross multiply
    766,475.80x = 1,149,713.70 × 366,910.90
  4. Step 4: Simplify right side
    766,475.80x = 421,842,488,409.33
  5. Step 5: Solve for x
    x = 421,842,488,409.33/766,475.80
  6. Step 6: Final answer
    x = 550,366.35

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Half scale
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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.