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Finding the Fourth Proportional to 743.62, 1,114.62 and 527.35

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Solution

The fourth proportional to 743.62, 1,114.62 and 527.35 is: 790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.62 : 1,114.62 = 527.35 : x
  2. Step 2: Convert to fraction form
    743.62/1,114.62 = 527.35/x
  3. Step 3: Cross multiply
    743.62x = 1,114.62 × 527.35
  4. Step 4: Simplify right side
    743.62x = 587,794.86
  5. Step 5: Solve for x
    x = 587,794.86/743.62
  6. Step 6: Final answer
    x = 790.45

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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.