Home / 766,328.06-1,149,491.39-361,425.80

Finding the Fourth Proportional to 766,328.06, 1,149,491.39 and 361,425.80

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Solution

The fourth proportional to 766,328.06, 1,149,491.39 and 361,425.80 is: 542,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,328.06 : 1,149,491.39 = 361,425.80 : x
  2. Step 2: Convert to fraction form
    766,328.06/1,149,491.39 = 361,425.80/x
  3. Step 3: Cross multiply
    766,328.06x = 1,149,491.39 × 361,425.80
  4. Step 4: Simplify right side
    766,328.06x = 415,455,846,290.46
  5. Step 5: Solve for x
    x = 415,455,846,290.46/766,328.06
  6. Step 6: Final answer
    x = 542,138.37

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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.