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Finding the Fourth Proportional to 767.23, 1,059.17 and 472.67

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Solution

The fourth proportional to 767.23, 1,059.17 and 472.67 is: 652.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    767.23 : 1,059.17 = 472.67 : x
  2. Step 2: Convert to fraction form
    767.23/1,059.17 = 472.67/x
  3. Step 3: Cross multiply
    767.23x = 1,059.17 × 472.67
  4. Step 4: Simplify right side
    767.23x = 500,630.22
  5. Step 5: Solve for x
    x = 500,630.22/767.23
  6. Step 6: Final answer
    x = 652.52

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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.