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Finding the Fourth Proportional to 1,052.12, 1,577.48 and 558.24

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Solution

The fourth proportional to 1,052.12, 1,577.48 and 558.24 is: 836.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.12 : 1,577.48 = 558.24 : x
  2. Step 2: Convert to fraction form
    1,052.12/1,577.48 = 558.24/x
  3. Step 3: Cross multiply
    1,052.12x = 1,577.48 × 558.24
  4. Step 4: Simplify right side
    1,052.12x = 880,612.44
  5. Step 5: Solve for x
    x = 880,612.44/1,052.12
  6. Step 6: Final answer
    x = 836.99

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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.