Home / 766,365.80-1,149,548.70-366,800.90

Finding the Fourth Proportional to 766,365.80, 1,149,548.70 and 366,800.90

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Solution

The fourth proportional to 766,365.80, 1,149,548.70 and 366,800.90 is: 550,201.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,365.80 : 1,149,548.70 = 366,800.90 : x
  2. Step 2: Convert to fraction form
    766,365.80/1,149,548.70 = 366,800.90/x
  3. Step 3: Cross multiply
    766,365.80x = 1,149,548.70 × 366,800.90
  4. Step 4: Simplify right side
    766,365.80x = 421,655,497,753.83
  5. Step 5: Solve for x
    x = 421,655,497,753.83/766,365.80
  6. Step 6: Final answer
    x = 550,201.35

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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.