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Finding the Fourth Proportional to 1,124.50, 1,686.24 and 604.42

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Solution

The fourth proportional to 1,124.50, 1,686.24 and 604.42 is: 906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.50 : 1,686.24 = 604.42 : x
  2. Step 2: Convert to fraction form
    1,124.50/1,686.24 = 604.42/x
  3. Step 3: Cross multiply
    1,124.50x = 1,686.24 × 604.42
  4. Step 4: Simplify right side
    1,124.50x = 1,019,197.18
  5. Step 5: Solve for x
    x = 1,019,197.18/1,124.50
  6. Step 6: Final answer
    x = 906.36

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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.