Home / 727,044.19-1,003,298.19-421,126.54

Finding the Fourth Proportional to 727,044.19, 1,003,298.19 and 421,126.54

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Solution

The fourth proportional to 727,044.19, 1,003,298.19 and 421,126.54 is: 581,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,044.19 : 1,003,298.19 = 421,126.54 : x
  2. Step 2: Convert to fraction form
    727,044.19/1,003,298.19 = 421,126.54/x
  3. Step 3: Cross multiply
    727,044.19x = 1,003,298.19 × 421,126.54
  4. Step 4: Simplify right side
    727,044.19x = 422,515,496,385.23
  5. Step 5: Solve for x
    x = 422,515,496,385.23/727,044.19
  6. Step 6: Final answer
    x = 581,141.43

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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.