Home / 725,837.17-1,001,671.55-399,129.47

Finding the Fourth Proportional to 725,837.17, 1,001,671.55 and 399,129.47

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Solution

The fourth proportional to 725,837.17, 1,001,671.55 and 399,129.47 is: 550,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,837.17 : 1,001,671.55 = 399,129.47 : x
  2. Step 2: Convert to fraction form
    725,837.17/1,001,671.55 = 399,129.47/x
  3. Step 3: Cross multiply
    725,837.17x = 1,001,671.55 × 399,129.47
  4. Step 4: Simplify right side
    725,837.17x = 399,796,638,367.58
  5. Step 5: Solve for x
    x = 399,796,638,367.58/725,837.17
  6. Step 6: Final answer
    x = 550,807.61

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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.