Home / 816,842.12-1,225,321.69-217,800.14

Finding the Fourth Proportional to 816,842.12, 1,225,321.69 and 217,800.14

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Solution

The fourth proportional to 816,842.12, 1,225,321.69 and 217,800.14 is: 326,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,842.12 : 1,225,321.69 = 217,800.14 : x
  2. Step 2: Convert to fraction form
    816,842.12/1,225,321.69 = 217,800.14/x
  3. Step 3: Cross multiply
    816,842.12x = 1,225,321.69 × 217,800.14
  4. Step 4: Simplify right side
    816,842.12x = 266,875,229,500.43
  5. Step 5: Solve for x
    x = 266,875,229,500.43/816,842.12
  6. Step 6: Final answer
    x = 326,715.81

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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.