Home / 825,078.80-1,138,389.24-476,130.80

Finding the Fourth Proportional to 825,078.80, 1,138,389.24 and 476,130.80

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Solution

The fourth proportional to 825,078.80, 1,138,389.24 and 476,130.80 is: 656,933.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,078.80 : 1,138,389.24 = 476,130.80 : x
  2. Step 2: Convert to fraction form
    825,078.80/1,138,389.24 = 476,130.80/x
  3. Step 3: Cross multiply
    825,078.80x = 1,138,389.24 × 476,130.80
  4. Step 4: Simplify right side
    825,078.80x = 542,022,179,552.59
  5. Step 5: Solve for x
    x = 542,022,179,552.59/825,078.80
  6. Step 6: Final answer
    x = 656,933.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.