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Finding the Fourth Proportional to 882.01, 1,218.76 and 632.89

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Solution

The fourth proportional to 882.01, 1,218.76 and 632.89 is: 874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.01 : 1,218.76 = 632.89 : x
  2. Step 2: Convert to fraction form
    882.01/1,218.76 = 632.89/x
  3. Step 3: Cross multiply
    882.01x = 1,218.76 × 632.89
  4. Step 4: Simplify right side
    882.01x = 771,345.62
  5. Step 5: Solve for x
    x = 771,345.62/882.01
  6. Step 6: Final answer
    x = 874.53

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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.