Home / 862,097.72-1,189,694.43-499,731.57

Finding the Fourth Proportional to 862,097.72, 1,189,694.43 and 499,731.57

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Solution

The fourth proportional to 862,097.72, 1,189,694.43 and 499,731.57 is: 689,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,097.72 : 1,189,694.43 = 499,731.57 : x
  2. Step 2: Convert to fraction form
    862,097.72/1,189,694.43 = 499,731.57/x
  3. Step 3: Cross multiply
    862,097.72x = 1,189,694.43 × 499,731.57
  4. Step 4: Simplify right side
    862,097.72x = 594,527,865,324.16
  5. Step 5: Solve for x
    x = 594,527,865,324.16/862,097.72
  6. Step 6: Final answer
    x = 689,629.33

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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.