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Finding the Fourth Proportional to 809.03, 1,116.89 and 544.86

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Solution

The fourth proportional to 809.03, 1,116.89 and 544.86 is: 752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    809.03 : 1,116.89 = 544.86 : x
  2. Step 2: Convert to fraction form
    809.03/1,116.89 = 544.86/x
  3. Step 3: Cross multiply
    809.03x = 1,116.89 × 544.86
  4. Step 4: Simplify right side
    809.03x = 608,545.96
  5. Step 5: Solve for x
    x = 608,545.96/809.03
  6. Step 6: Final answer
    x = 752.19

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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.