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Finding the Fourth Proportional to 882.29, 1,217.95 and 583.72

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Solution

The fourth proportional to 882.29, 1,217.95 and 583.72 is: 805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.29 : 1,217.95 = 583.72 : x
  2. Step 2: Convert to fraction form
    882.29/1,217.95 = 583.72/x
  3. Step 3: Cross multiply
    882.29x = 1,217.95 × 583.72
  4. Step 4: Simplify right side
    882.29x = 710,941.77
  5. Step 5: Solve for x
    x = 710,941.77/882.29
  6. Step 6: Final answer
    x = 805.79

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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.