Home / 725,411.20-1,001,003.84-403,100.88

Finding the Fourth Proportional to 725,411.20, 1,001,003.84 and 403,100.88

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Solution

The fourth proportional to 725,411.20, 1,001,003.84 and 403,100.88 is: 556,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,411.20 : 1,001,003.84 = 403,100.88 : x
  2. Step 2: Convert to fraction form
    725,411.20/1,001,003.84 = 403,100.88/x
  3. Step 3: Cross multiply
    725,411.20x = 1,001,003.84 × 403,100.88
  4. Step 4: Simplify right side
    725,411.20x = 403,505,528,787.38
  5. Step 5: Solve for x
    x = 403,505,528,787.38/725,411.20
  6. Step 6: Final answer
    x = 556,243.86

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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.