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Finding the Fourth Proportional to 887.60, 1,224.77 and 514.57

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Solution

The fourth proportional to 887.60, 1,224.77 and 514.57 is: 710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.60 : 1,224.77 = 514.57 : x
  2. Step 2: Convert to fraction form
    887.60/1,224.77 = 514.57/x
  3. Step 3: Cross multiply
    887.60x = 1,224.77 × 514.57
  4. Step 4: Simplify right side
    887.60x = 630,224.26
  5. Step 5: Solve for x
    x = 630,224.26/887.60
  6. Step 6: Final answer
    x = 710.04

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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.