Home / 755,645.52-1,042,516.92-428,769.24

Finding the Fourth Proportional to 755,645.52, 1,042,516.92 and 428,769.24

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Solution

The fourth proportional to 755,645.52, 1,042,516.92 and 428,769.24 is: 591,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,645.52 : 1,042,516.92 = 428,769.24 : x
  2. Step 2: Convert to fraction form
    755,645.52/1,042,516.92 = 428,769.24/x
  3. Step 3: Cross multiply
    755,645.52x = 1,042,516.92 × 428,769.24
  4. Step 4: Simplify right side
    755,645.52x = 446,999,187,475.54
  5. Step 5: Solve for x
    x = 446,999,187,475.54/755,645.52
  6. Step 6: Final answer
    x = 591,546.14

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1.5x scale

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.