Home / 862,078.05-1,189,704.61-480,104.83

Finding the Fourth Proportional to 862,078.05, 1,189,704.61 and 480,104.83

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Solution

The fourth proportional to 862,078.05, 1,189,704.61 and 480,104.83 is: 662,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,078.05 : 1,189,704.61 = 480,104.83 : x
  2. Step 2: Convert to fraction form
    862,078.05/1,189,704.61 = 480,104.83/x
  3. Step 3: Cross multiply
    862,078.05x = 1,189,704.61 × 480,104.83
  4. Step 4: Simplify right side
    862,078.05x = 571,182,928,275.48
  5. Step 5: Solve for x
    x = 571,182,928,275.48/862,078.05
  6. Step 6: Final answer
    x = 662,565.22

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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.