Home / 765,285.48-1,147,531.05-225,471.69

Finding the Fourth Proportional to 765,285.48, 1,147,531.05 and 225,471.69

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Solution

The fourth proportional to 765,285.48, 1,147,531.05 and 225,471.69 is: 338,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,285.48 : 1,147,531.05 = 225,471.69 : x
  2. Step 2: Convert to fraction form
    765,285.48/1,147,531.05 = 225,471.69/x
  3. Step 3: Cross multiply
    765,285.48x = 1,147,531.05 × 225,471.69
  4. Step 4: Simplify right side
    765,285.48x = 258,735,765,170.98
  5. Step 5: Solve for x
    x = 258,735,765,170.98/765,285.48
  6. Step 6: Final answer
    x = 338,090.52

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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.