Home / 782,301.50-1,079,390.96-442,769.76

Finding the Fourth Proportional to 782,301.50, 1,079,390.96 and 442,769.76

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Solution

The fourth proportional to 782,301.50, 1,079,390.96 and 442,769.76 is: 610,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,301.50 : 1,079,390.96 = 442,769.76 : x
  2. Step 2: Convert to fraction form
    782,301.50/1,079,390.96 = 442,769.76/x
  3. Step 3: Cross multiply
    782,301.50x = 1,079,390.96 × 442,769.76
  4. Step 4: Simplify right side
    782,301.50x = 477,921,676,305.37
  5. Step 5: Solve for x
    x = 477,921,676,305.37/782,301.50
  6. Step 6: Final answer
    x = 610,917.50

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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.