Home / 862,080.59-1,189,708.11-480,107.37

Finding the Fourth Proportional to 862,080.59, 1,189,708.11 and 480,107.37

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Solution

The fourth proportional to 862,080.59, 1,189,708.11 and 480,107.37 is: 662,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,080.59 : 1,189,708.11 = 480,107.37 : x
  2. Step 2: Convert to fraction form
    862,080.59/1,189,708.11 = 480,107.37/x
  3. Step 3: Cross multiply
    862,080.59x = 1,189,708.11 × 480,107.37
  4. Step 4: Simplify right side
    862,080.59x = 571,187,631,759.77
  5. Step 5: Solve for x
    x = 571,187,631,759.77/862,080.59
  6. Step 6: Final answer
    x = 662,568.72

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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.