Home / 770,620.60-1,155,930.90-646,204.60

Finding the Fourth Proportional to 770,620.60, 1,155,930.90 and 646,204.60

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Solution

The fourth proportional to 770,620.60, 1,155,930.90 and 646,204.60 is: 969,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,620.60 : 1,155,930.90 = 646,204.60 : x
  2. Step 2: Convert to fraction form
    770,620.60/1,155,930.90 = 646,204.60/x
  3. Step 3: Cross multiply
    770,620.60x = 1,155,930.90 × 646,204.60
  4. Step 4: Simplify right side
    770,620.60x = 746,967,864,862.14
  5. Step 5: Solve for x
    x = 746,967,864,862.14/770,620.60
  6. Step 6: Final answer
    x = 969,306.90

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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.