Home / 872,432.28-1,203,944.67-485,243.96

Finding the Fourth Proportional to 872,432.28, 1,203,944.67 and 485,243.96

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Solution

The fourth proportional to 872,432.28, 1,203,944.67 and 485,243.96 is: 669,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,432.28 : 1,203,944.67 = 485,243.96 : x
  2. Step 2: Convert to fraction form
    872,432.28/1,203,944.67 = 485,243.96/x
  3. Step 3: Cross multiply
    872,432.28x = 1,203,944.67 × 485,243.96
  4. Step 4: Simplify right side
    872,432.28x = 584,206,873,271.97
  5. Step 5: Solve for x
    x = 584,206,873,271.97/872,432.28
  6. Step 6: Final answer
    x = 669,630.05

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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.