Home / 925,020.80-1,276,538.19-517,145.30

Finding the Fourth Proportional to 925,020.80, 1,276,538.19 and 517,145.30

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Solution

The fourth proportional to 925,020.80, 1,276,538.19 and 517,145.30 is: 713,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,020.80 : 1,276,538.19 = 517,145.30 : x
  2. Step 2: Convert to fraction form
    925,020.80/1,276,538.19 = 517,145.30/x
  3. Step 3: Cross multiply
    925,020.80x = 1,276,538.19 × 517,145.30
  4. Step 4: Simplify right side
    925,020.80x = 660,155,725,229.01
  5. Step 5: Solve for x
    x = 660,155,725,229.01/925,020.80
  6. Step 6: Final answer
    x = 713,665.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.