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Finding the Fourth Proportional to 1,158.04, 1,737.20 and 417.53

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Solution

The fourth proportional to 1,158.04, 1,737.20 and 417.53 is: 626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.04 : 1,737.20 = 417.53 : x
  2. Step 2: Convert to fraction form
    1,158.04/1,737.20 = 417.53/x
  3. Step 3: Cross multiply
    1,158.04x = 1,737.20 × 417.53
  4. Step 4: Simplify right side
    1,158.04x = 725,331.27
  5. Step 5: Solve for x
    x = 725,331.27/1,158.04
  6. Step 6: Final answer
    x = 626.34

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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.