Home / 725,062.48-1,086,475.92-388,147.84

Finding the Fourth Proportional to 725,062.48, 1,086,475.92 and 388,147.84

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Solution

The fourth proportional to 725,062.48, 1,086,475.92 and 388,147.84 is: 581,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,062.48 : 1,086,475.92 = 388,147.84 : x
  2. Step 2: Convert to fraction form
    725,062.48/1,086,475.92 = 388,147.84/x
  3. Step 3: Cross multiply
    725,062.48x = 1,086,475.92 × 388,147.84
  4. Step 4: Simplify right side
    725,062.48x = 421,713,281,560.01
  5. Step 5: Solve for x
    x = 421,713,281,560.01/725,062.48
  6. Step 6: Final answer
    x = 581,623.37

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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.