Home / 1,298,538.20-1,947,807.30-850,640.60

Finding the Fourth Proportional to 1,298,538.20, 1,947,807.30 and 850,640.60

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Solution

The fourth proportional to 1,298,538.20, 1,947,807.30 and 850,640.60 is: 1,275,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,538.20 : 1,947,807.30 = 850,640.60 : x
  2. Step 2: Convert to fraction form
    1,298,538.20/1,947,807.30 = 850,640.60/x
  3. Step 3: Cross multiply
    1,298,538.20x = 1,947,807.30 × 850,640.60
  4. Step 4: Simplify right side
    1,298,538.20x = 1,656,883,970,356.38
  5. Step 5: Solve for x
    x = 1,656,883,970,356.38/1,298,538.20
  6. Step 6: Final answer
    x = 1,275,960.90

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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.