Home / 764,475.68-1,140,263.34-663,844.52

Finding the Fourth Proportional to 764,475.68, 1,140,263.34 and 663,844.52

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Solution

The fourth proportional to 764,475.68, 1,140,263.34 and 663,844.52 is: 990,165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,475.68 : 1,140,263.34 = 663,844.52 : x
  2. Step 2: Convert to fraction form
    764,475.68/1,140,263.34 = 663,844.52/x
  3. Step 3: Cross multiply
    764,475.68x = 1,140,263.34 × 663,844.52
  4. Step 4: Simplify right side
    764,475.68x = 756,957,569,615.90
  5. Step 5: Solve for x
    x = 756,957,569,615.90/764,475.68
  6. Step 6: Final answer
    x = 990,165.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.