Home / 1,032.40-1,548.68-339.17

Finding the Fourth Proportional to 1,032.40, 1,548.68 and 339.17

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Solution

The fourth proportional to 1,032.40, 1,548.68 and 339.17 is: 508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.40 : 1,548.68 = 339.17 : x
  2. Step 2: Convert to fraction form
    1,032.40/1,548.68 = 339.17/x
  3. Step 3: Cross multiply
    1,032.40x = 1,548.68 × 339.17
  4. Step 4: Simplify right side
    1,032.40x = 525,265.80
  5. Step 5: Solve for x
    x = 525,265.80/1,032.40
  6. Step 6: Final answer
    x = 508.78

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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.