Home / 764,416.80-1,146,625.20-681,748.20

Finding the Fourth Proportional to 764,416.80, 1,146,625.20 and 681,748.20

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Solution

The fourth proportional to 764,416.80, 1,146,625.20 and 681,748.20 is: 1,022,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,416.80 : 1,146,625.20 = 681,748.20 : x
  2. Step 2: Convert to fraction form
    764,416.80/1,146,625.20 = 681,748.20/x
  3. Step 3: Cross multiply
    764,416.80x = 1,146,625.20 × 681,748.20
  4. Step 4: Simplify right side
    764,416.80x = 781,709,666,174.64
  5. Step 5: Solve for x
    x = 781,709,666,174.64/764,416.80
  6. Step 6: Final answer
    x = 1,022,622.30

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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.