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Finding the Fourth Proportional to 885.52, 1,328.71 and 627.18

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Solution

The fourth proportional to 885.52, 1,328.71 and 627.18 is: 941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.52 : 1,328.71 = 627.18 : x
  2. Step 2: Convert to fraction form
    885.52/1,328.71 = 627.18/x
  3. Step 3: Cross multiply
    885.52x = 1,328.71 × 627.18
  4. Step 4: Simplify right side
    885.52x = 833,340.34
  5. Step 5: Solve for x
    x = 833,340.34/885.52
  6. Step 6: Final answer
    x = 941.08

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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.