Home / 782,115.20-1,097,910.40-782,115.20

Finding the Fourth Proportional to 782,115.20, 1,097,910.40 and 782,115.20

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Solution

The fourth proportional to 782,115.20, 1,097,910.40 and 782,115.20 is: 1,097,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,115.20 : 1,097,910.40 = 782,115.20 : x
  2. Step 2: Convert to fraction form
    782,115.20/1,097,910.40 = 782,115.20/x
  3. Step 3: Cross multiply
    782,115.20x = 1,097,910.40 × 782,115.20
  4. Step 4: Simplify right side
    782,115.20x = 858,692,412,078.08
  5. Step 5: Solve for x
    x = 858,692,412,078.08/782,115.20
  6. Step 6: Final answer
    x = 1,097,910.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.