Home / 1,298,785.20-1,948,177.80-457,227.60

Finding the Fourth Proportional to 1,298,785.20, 1,948,177.80 and 457,227.60

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Solution

The fourth proportional to 1,298,785.20, 1,948,177.80 and 457,227.60 is: 685,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,785.20 : 1,948,177.80 = 457,227.60 : x
  2. Step 2: Convert to fraction form
    1,298,785.20/1,948,177.80 = 457,227.60/x
  3. Step 3: Cross multiply
    1,298,785.20x = 1,948,177.80 × 457,227.60
  4. Step 4: Simplify right side
    1,298,785.20x = 890,760,659,867.28
  5. Step 5: Solve for x
    x = 890,760,659,867.28/1,298,785.20
  6. Step 6: Final answer
    x = 685,841.40

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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.