Home / 862,883.20-1,294,324.80-442,979.20

Finding the Fourth Proportional to 862,883.20, 1,294,324.80 and 442,979.20

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Solution

The fourth proportional to 862,883.20, 1,294,324.80 and 442,979.20 is: 664,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,883.20 : 1,294,324.80 = 442,979.20 : x
  2. Step 2: Convert to fraction form
    862,883.20/1,294,324.80 = 442,979.20/x
  3. Step 3: Cross multiply
    862,883.20x = 1,294,324.80 × 442,979.20
  4. Step 4: Simplify right side
    862,883.20x = 573,358,964,444.16
  5. Step 5: Solve for x
    x = 573,358,964,444.16/862,883.20
  6. Step 6: Final answer
    x = 664,468.80

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1.5x scale

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.