Home / 658,821.12-988,248.08-185,503.28

Finding the Fourth Proportional to 658,821.12, 988,248.08 and 185,503.28

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Solution

The fourth proportional to 658,821.12, 988,248.08 and 185,503.28 is: 278,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,821.12 : 988,248.08 = 185,503.28 : x
  2. Step 2: Convert to fraction form
    658,821.12/988,248.08 = 185,503.28/x
  3. Step 3: Cross multiply
    658,821.12x = 988,248.08 × 185,503.28
  4. Step 4: Simplify right side
    658,821.12x = 183,323,260,293.70
  5. Step 5: Solve for x
    x = 183,323,260,293.70/658,821.12
  6. Step 6: Final answer
    x = 278,259.54

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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.