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Finding the Fourth Proportional to 1,030.62, 1,545.54 and 372.32

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Solution

The fourth proportional to 1,030.62, 1,545.54 and 372.32 is: 558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.62 : 1,545.54 = 372.32 : x
  2. Step 2: Convert to fraction form
    1,030.62/1,545.54 = 372.32/x
  3. Step 3: Cross multiply
    1,030.62x = 1,545.54 × 372.32
  4. Step 4: Simplify right side
    1,030.62x = 575,439.32
  5. Step 5: Solve for x
    x = 575,439.32/1,030.62
  6. Step 6: Final answer
    x = 558.34

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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.