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Finding the Fourth Proportional to 882.35, 1,323.51 and 492.93

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Solution

The fourth proportional to 882.35, 1,323.51 and 492.93 is: 739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.35 : 1,323.51 = 492.93 : x
  2. Step 2: Convert to fraction form
    882.35/1,323.51 = 492.93/x
  3. Step 3: Cross multiply
    882.35x = 1,323.51 × 492.93
  4. Step 4: Simplify right side
    882.35x = 652,397.78
  5. Step 5: Solve for x
    x = 652,397.78/882.35
  6. Step 6: Final answer
    x = 739.39

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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.