Home / 1,288,729.92-1,778,343.04-744,900.96

Finding the Fourth Proportional to 1,288,729.92, 1,778,343.04 and 744,900.96

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Solution

The fourth proportional to 1,288,729.92, 1,778,343.04 and 744,900.96 is: 1,027,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,729.92 : 1,778,343.04 = 744,900.96 : x
  2. Step 2: Convert to fraction form
    1,288,729.92/1,778,343.04 = 744,900.96/x
  3. Step 3: Cross multiply
    1,288,729.92x = 1,778,343.04 × 744,900.96
  4. Step 4: Simplify right side
    1,288,729.92x = 1,324,689,437,705.32
  5. Step 5: Solve for x
    x = 1,324,689,437,705.32/1,288,729.92
  6. Step 6: Final answer
    x = 1,027,903.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.