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Finding the Fourth Proportional to 1,060.60, 1,589.66 and 540.30

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Solution

The fourth proportional to 1,060.60, 1,589.66 and 540.30 is: 809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.60 : 1,589.66 = 540.30 : x
  2. Step 2: Convert to fraction form
    1,060.60/1,589.66 = 540.30/x
  3. Step 3: Cross multiply
    1,060.60x = 1,589.66 × 540.30
  4. Step 4: Simplify right side
    1,060.60x = 858,893.30
  5. Step 5: Solve for x
    x = 858,893.30/1,060.60
  6. Step 6: Final answer
    x = 809.82

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1.5x scale

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.