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Finding the Fourth Proportional to 408,754.28, 616,970.96 and 408,754.28

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Solution

The fourth proportional to 408,754.28, 616,970.96 and 408,754.28 is: 616,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,754.28 : 616,970.96 = 408,754.28 : x
  2. Step 2: Convert to fraction form
    408,754.28/616,970.96 = 408,754.28/x
  3. Step 3: Cross multiply
    408,754.28x = 616,970.96 × 408,754.28
  4. Step 4: Simplify right side
    408,754.28x = 252,189,515,407.08
  5. Step 5: Solve for x
    x = 252,189,515,407.08/408,754.28
  6. Step 6: Final answer
    x = 616,970.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.