Home / 818,723.70-1,228,085.55-813,474.90

Finding the Fourth Proportional to 818,723.70, 1,228,085.55 and 813,474.90

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Solution

The fourth proportional to 818,723.70, 1,228,085.55 and 813,474.90 is: 1,220,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,723.70 : 1,228,085.55 = 813,474.90 : x
  2. Step 2: Convert to fraction form
    818,723.70/1,228,085.55 = 813,474.90/x
  3. Step 3: Cross multiply
    818,723.70x = 1,228,085.55 × 813,474.90
  4. Step 4: Simplify right side
    818,723.70x = 999,016,769,977.70
  5. Step 5: Solve for x
    x = 999,016,769,977.70/818,723.70
  6. Step 6: Final answer
    x = 1,220,212.35

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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.