Home / 1,298,538.40-1,947,807.60-850,640.80

Finding the Fourth Proportional to 1,298,538.40, 1,947,807.60 and 850,640.80

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Solution

The fourth proportional to 1,298,538.40, 1,947,807.60 and 850,640.80 is: 1,275,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,538.40 : 1,947,807.60 = 850,640.80 : x
  2. Step 2: Convert to fraction form
    1,298,538.40/1,947,807.60 = 850,640.80/x
  3. Step 3: Cross multiply
    1,298,538.40x = 1,947,807.60 × 850,640.80
  4. Step 4: Simplify right side
    1,298,538.40x = 1,656,884,615,110.08
  5. Step 5: Solve for x
    x = 1,656,884,615,110.08/1,298,538.40
  6. Step 6: Final answer
    x = 1,275,961.20

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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.