Home / 825,350.31-1,237,769.71-398,620.85

Finding the Fourth Proportional to 825,350.31, 1,237,769.71 and 398,620.85

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Solution

The fourth proportional to 825,350.31, 1,237,769.71 and 398,620.85 is: 597,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,350.31 : 1,237,769.71 = 398,620.85 : x
  2. Step 2: Convert to fraction form
    825,350.31/1,237,769.71 = 398,620.85/x
  3. Step 3: Cross multiply
    825,350.31x = 1,237,769.71 × 398,620.85
  4. Step 4: Simplify right side
    825,350.31x = 493,400,806,719.05
  5. Step 5: Solve for x
    x = 493,400,806,719.05/825,350.31
  6. Step 6: Final answer
    x = 597,807.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.