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Finding the Fourth Proportional to 1,032.97, 1,549.51 and 339.86

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Solution

The fourth proportional to 1,032.97, 1,549.51 and 339.86 is: 509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.97 : 1,549.51 = 339.86 : x
  2. Step 2: Convert to fraction form
    1,032.97/1,549.51 = 339.86/x
  3. Step 3: Cross multiply
    1,032.97x = 1,549.51 × 339.86
  4. Step 4: Simplify right side
    1,032.97x = 526,621.40
  5. Step 5: Solve for x
    x = 526,621.40/1,032.97
  6. Step 6: Final answer
    x = 509.81

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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.