Home / 764,430.30-1,146,645.45-681,761.70

Finding the Fourth Proportional to 764,430.30, 1,146,645.45 and 681,761.70

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Solution

The fourth proportional to 764,430.30, 1,146,645.45 and 681,761.70 is: 1,022,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,430.30 : 1,146,645.45 = 681,761.70 : x
  2. Step 2: Convert to fraction form
    764,430.30/1,146,645.45 = 681,761.70/x
  3. Step 3: Cross multiply
    764,430.30x = 1,146,645.45 × 681,761.70
  4. Step 4: Simplify right side
    764,430.30x = 781,738,951,289.27
  5. Step 5: Solve for x
    x = 781,738,951,289.27/764,430.30
  6. Step 6: Final answer
    x = 1,022,642.55

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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.