Home / 487,862.19-731,798.75-172,097.66

Finding the Fourth Proportional to 487,862.19, 731,798.75 and 172,097.66

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Solution

The fourth proportional to 487,862.19, 731,798.75 and 172,097.66 is: 258,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,862.19 : 731,798.75 = 172,097.66 : x
  2. Step 2: Convert to fraction form
    487,862.19/731,798.75 = 172,097.66/x
  3. Step 3: Cross multiply
    487,862.19x = 731,798.75 × 172,097.66
  4. Step 4: Simplify right side
    487,862.19x = 125,940,854,725.67
  5. Step 5: Solve for x
    x = 125,940,854,725.67/487,862.19
  6. Step 6: Final answer
    x = 258,148.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.