Home / 727,083.80-1,003,366.10-421,201.88

Finding the Fourth Proportional to 727,083.80, 1,003,366.10 and 421,201.88

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Solution

The fourth proportional to 727,083.80, 1,003,366.10 and 421,201.88 is: 581,253.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,083.80 : 1,003,366.10 = 421,201.88 : x
  2. Step 2: Convert to fraction form
    727,083.80/1,003,366.10 = 421,201.88/x
  3. Step 3: Cross multiply
    727,083.80x = 1,003,366.10 × 421,201.88
  4. Step 4: Simplify right side
    727,083.80x = 422,619,687,648.27
  5. Step 5: Solve for x
    x = 422,619,687,648.27/727,083.80
  6. Step 6: Final answer
    x = 581,253.07

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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.