Home / 764,431.80-1,146,647.70-681,763.20

Finding the Fourth Proportional to 764,431.80, 1,146,647.70 and 681,763.20

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Solution

The fourth proportional to 764,431.80, 1,146,647.70 and 681,763.20 is: 1,022,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,431.80 : 1,146,647.70 = 681,763.20 : x
  2. Step 2: Convert to fraction form
    764,431.80/1,146,647.70 = 681,763.20/x
  3. Step 3: Cross multiply
    764,431.80x = 1,146,647.70 × 681,763.20
  4. Step 4: Simplify right side
    764,431.80x = 781,742,205,224.64
  5. Step 5: Solve for x
    x = 781,742,205,224.64/764,431.80
  6. Step 6: Final answer
    x = 1,022,644.80

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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.