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Finding the Fourth Proportional to 887.92, 1,225.20 and 593.08

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Solution

The fourth proportional to 887.92, 1,225.20 and 593.08 is: 818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.92 : 1,225.20 = 593.08 : x
  2. Step 2: Convert to fraction form
    887.92/1,225.20 = 593.08/x
  3. Step 3: Cross multiply
    887.92x = 1,225.20 × 593.08
  4. Step 4: Simplify right side
    887.92x = 726,641.62
  5. Step 5: Solve for x
    x = 726,641.62/887.92
  6. Step 6: Final answer
    x = 818.36

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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.