Home / 755,091.19-1,042,049.48-428,417.97

Finding the Fourth Proportional to 755,091.19, 1,042,049.48 and 428,417.97

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Solution

The fourth proportional to 755,091.19, 1,042,049.48 and 428,417.97 is: 591,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,091.19 : 1,042,049.48 = 428,417.97 : x
  2. Step 2: Convert to fraction form
    755,091.19/1,042,049.48 = 428,417.97/x
  3. Step 3: Cross multiply
    755,091.19x = 1,042,049.48 × 428,417.97
  4. Step 4: Simplify right side
    755,091.19x = 446,432,718,447.77
  5. Step 5: Solve for x
    x = 446,432,718,447.77/755,091.19
  6. Step 6: Final answer
    x = 591,230.20

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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.