Home / 563,632.65-777,819.38-321,947.28

Finding the Fourth Proportional to 563,632.65, 777,819.38 and 321,947.28

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Solution

The fourth proportional to 563,632.65, 777,819.38 and 321,947.28 is: 444,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,632.65 : 777,819.38 = 321,947.28 : x
  2. Step 2: Convert to fraction form
    563,632.65/777,819.38 = 321,947.28/x
  3. Step 3: Cross multiply
    563,632.65x = 777,819.38 × 321,947.28
  4. Step 4: Simplify right side
    563,632.65x = 250,416,832,112.55
  5. Step 5: Solve for x
    x = 250,416,832,112.55/563,632.65
  6. Step 6: Final answer
    x = 444,290.86

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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.