Home / 1,192.11-1,787.95-498.59

Finding the Fourth Proportional to 1,192.11, 1,787.95 and 498.59

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Solution

The fourth proportional to 1,192.11, 1,787.95 and 498.59 is: 747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.11 : 1,787.95 = 498.59 : x
  2. Step 2: Convert to fraction form
    1,192.11/1,787.95 = 498.59/x
  3. Step 3: Cross multiply
    1,192.11x = 1,787.95 × 498.59
  4. Step 4: Simplify right side
    1,192.11x = 891,451.50
  5. Step 5: Solve for x
    x = 891,451.50/1,192.11
  6. Step 6: Final answer
    x = 747.79

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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.