Home / 816,842.75-1,225,322.64-217,800.77

Finding the Fourth Proportional to 816,842.75, 1,225,322.64 and 217,800.77

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Solution

The fourth proportional to 816,842.75, 1,225,322.64 and 217,800.77 is: 326,716.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,842.75 : 1,225,322.64 = 217,800.77 : x
  2. Step 2: Convert to fraction form
    816,842.75/1,225,322.64 = 217,800.77/x
  3. Step 3: Cross multiply
    816,842.75x = 1,225,322.64 × 217,800.77
  4. Step 4: Simplify right side
    816,842.75x = 266,876,208,363.82
  5. Step 5: Solve for x
    x = 266,876,208,363.82/816,842.75
  6. Step 6: Final answer
    x = 326,716.75

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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.