Home / 764,432.40-1,146,648.60-681,763.80

Finding the Fourth Proportional to 764,432.40, 1,146,648.60 and 681,763.80

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Solution

The fourth proportional to 764,432.40, 1,146,648.60 and 681,763.80 is: 1,022,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,432.40 : 1,146,648.60 = 681,763.80 : x
  2. Step 2: Convert to fraction form
    764,432.40/1,146,648.60 = 681,763.80/x
  3. Step 3: Cross multiply
    764,432.40x = 1,146,648.60 × 681,763.80
  4. Step 4: Simplify right side
    764,432.40x = 781,743,506,800.68
  5. Step 5: Solve for x
    x = 781,743,506,800.68/764,432.40
  6. Step 6: Final answer
    x = 1,022,645.70

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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.