Home / 764,429.40-1,146,644.10-727,687.80

Finding the Fourth Proportional to 764,429.40, 1,146,644.10 and 727,687.80

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Solution

The fourth proportional to 764,429.40, 1,146,644.10 and 727,687.80 is: 1,091,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,429.40 : 1,146,644.10 = 727,687.80 : x
  2. Step 2: Convert to fraction form
    764,429.40/1,146,644.10 = 727,687.80/x
  3. Step 3: Cross multiply
    764,429.40x = 1,146,644.10 × 727,687.80
  4. Step 4: Simplify right side
    764,429.40x = 834,398,922,511.98
  5. Step 5: Solve for x
    x = 834,398,922,511.98/764,429.40
  6. Step 6: Final answer
    x = 1,091,531.70

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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.