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Finding the Fourth Proportional to 1,012.55, 1,397.31 and 592.92

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Solution

The fourth proportional to 1,012.55, 1,397.31 and 592.92 is: 818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012.55 : 1,397.31 = 592.92 : x
  2. Step 2: Convert to fraction form
    1,012.55/1,397.31 = 592.92/x
  3. Step 3: Cross multiply
    1,012.55x = 1,397.31 × 592.92
  4. Step 4: Simplify right side
    1,012.55x = 828,493.05
  5. Step 5: Solve for x
    x = 828,493.05/1,012.55
  6. Step 6: Final answer
    x = 818.22

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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.