Home / 816,764.40-1,225,204.95-217,722.42

Finding the Fourth Proportional to 816,764.40, 1,225,204.95 and 217,722.42

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Solution

The fourth proportional to 816,764.40, 1,225,204.95 and 217,722.42 is: 326,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,764.40 : 1,225,204.95 = 217,722.42 : x
  2. Step 2: Convert to fraction form
    816,764.40/1,225,204.95 = 217,722.42/x
  3. Step 3: Cross multiply
    816,764.40x = 1,225,204.95 × 217,722.42
  4. Step 4: Simplify right side
    816,764.40x = 266,754,586,709.98
  5. Step 5: Solve for x
    x = 266,754,586,709.98/816,764.40
  6. Step 6: Final answer
    x = 326,599.18

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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.