Home / 2,947,869.30-4,421,309.31-818,169.78

Finding the Fourth Proportional to 2,947,869.30, 4,421,309.31 and 818,169.78

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Solution

The fourth proportional to 2,947,869.30, 4,421,309.31 and 818,169.78 is: 1,227,117.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947,869.30 : 4,421,309.31 = 818,169.78 : x
  2. Step 2: Convert to fraction form
    2,947,869.30/4,421,309.31 = 818,169.78/x
  3. Step 3: Cross multiply
    2,947,869.30x = 4,421,309.31 × 818,169.78
  4. Step 4: Simplify right side
    2,947,869.30x = 3,617,381,665,474.65
  5. Step 5: Solve for x
    x = 3,617,381,665,474.65/2,947,869.30
  6. Step 6: Final answer
    x = 1,227,117.38

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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.