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Finding the Fourth Proportional to 591,444.80, 887,512.80 and 217,505.60

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Solution

The fourth proportional to 591,444.80, 887,512.80 and 217,505.60 is: 326,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,444.80 : 887,512.80 = 217,505.60 : x
  2. Step 2: Convert to fraction form
    591,444.80/887,512.80 = 217,505.60/x
  3. Step 3: Cross multiply
    591,444.80x = 887,512.80 × 217,505.60
  4. Step 4: Simplify right side
    591,444.80x = 193,039,004,071.68
  5. Step 5: Solve for x
    x = 193,039,004,071.68/591,444.80
  6. Step 6: Final answer
    x = 326,385.50

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Double scale
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Similar ratio
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1.5x scale

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.