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Finding the Fourth Proportional to 748.04, 1,032.76 and 482.61

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Solution

The fourth proportional to 748.04, 1,032.76 and 482.61 is: 666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.04 : 1,032.76 = 482.61 : x
  2. Step 2: Convert to fraction form
    748.04/1,032.76 = 482.61/x
  3. Step 3: Cross multiply
    748.04x = 1,032.76 × 482.61
  4. Step 4: Simplify right side
    748.04x = 498,424.78
  5. Step 5: Solve for x
    x = 498,424.78/748.04
  6. Step 6: Final answer
    x = 666.31

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Double scale
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1.5x scale

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.