Home / 1,043.28-1,439.68-577.52

Finding the Fourth Proportional to 1,043.28, 1,439.68 and 577.52

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Solution

The fourth proportional to 1,043.28, 1,439.68 and 577.52 is: 796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.28 : 1,439.68 = 577.52 : x
  2. Step 2: Convert to fraction form
    1,043.28/1,439.68 = 577.52/x
  3. Step 3: Cross multiply
    1,043.28x = 1,439.68 × 577.52
  4. Step 4: Simplify right side
    1,043.28x = 831,443.99
  5. Step 5: Solve for x
    x = 831,443.99/1,043.28
  6. Step 6: Final answer
    x = 796.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.