Home / 980,025.30-1,469,726.70-315,021.78

Finding the Fourth Proportional to 980,025.30, 1,469,726.70 and 315,021.78

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Solution

The fourth proportional to 980,025.30, 1,469,726.70 and 315,021.78 is: 472,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,025.30 : 1,469,726.70 = 315,021.78 : x
  2. Step 2: Convert to fraction form
    980,025.30/1,469,726.70 = 315,021.78/x
  3. Step 3: Cross multiply
    980,025.30x = 1,469,726.70 × 315,021.78
  4. Step 4: Simplify right side
    980,025.30x = 462,995,921,147.53
  5. Step 5: Solve for x
    x = 462,995,921,147.53/980,025.30
  6. Step 6: Final answer
    x = 472,432.62

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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.