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Finding the Fourth Proportional to 1,027.02, 1,543.32 and 540.30

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Solution

The fourth proportional to 1,027.02, 1,543.32 and 540.30 is: 811.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.02 : 1,543.32 = 540.30 : x
  2. Step 2: Convert to fraction form
    1,027.02/1,543.32 = 540.30/x
  3. Step 3: Cross multiply
    1,027.02x = 1,543.32 × 540.30
  4. Step 4: Simplify right side
    1,027.02x = 833,855.80
  5. Step 5: Solve for x
    x = 833,855.80/1,027.02
  6. Step 6: Final answer
    x = 811.92

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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.