Home / 862,149.65-1,189,719.65-474,889.60

Finding the Fourth Proportional to 862,149.65, 1,189,719.65 and 474,889.60

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Solution

The fourth proportional to 862,149.65, 1,189,719.65 and 474,889.60 is: 655,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,149.65 : 1,189,719.65 = 474,889.60 : x
  2. Step 2: Convert to fraction form
    862,149.65/1,189,719.65 = 474,889.60/x
  3. Step 3: Cross multiply
    862,149.65x = 1,189,719.65 × 474,889.60
  4. Step 4: Simplify right side
    862,149.65x = 564,985,480,377.59
  5. Step 5: Solve for x
    x = 564,985,480,377.59/862,149.65
  6. Step 6: Final answer
    x = 655,321.82

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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.