Home / 438,999.20-658,498.80-106,575.20

Finding the Fourth Proportional to 438,999.20, 658,498.80 and 106,575.20

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Solution

The fourth proportional to 438,999.20, 658,498.80 and 106,575.20 is: 159,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,999.20 : 658,498.80 = 106,575.20 : x
  2. Step 2: Convert to fraction form
    438,999.20/658,498.80 = 106,575.20/x
  3. Step 3: Cross multiply
    438,999.20x = 658,498.80 × 106,575.20
  4. Step 4: Simplify right side
    438,999.20x = 70,179,641,309.76
  5. Step 5: Solve for x
    x = 70,179,641,309.76/438,999.20
  6. Step 6: Final answer
    x = 159,862.80

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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.