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Finding the Fourth Proportional to 1,062.80, 1,594.68 and 575.76

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Solution

The fourth proportional to 1,062.80, 1,594.68 and 575.76 is: 863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.80 : 1,594.68 = 575.76 : x
  2. Step 2: Convert to fraction form
    1,062.80/1,594.68 = 575.76/x
  3. Step 3: Cross multiply
    1,062.80x = 1,594.68 × 575.76
  4. Step 4: Simplify right side
    1,062.80x = 918,152.96
  5. Step 5: Solve for x
    x = 918,152.96/1,062.80
  6. Step 6: Final answer
    x = 863.90

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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.