Home / 816,758.84-1,225,196.64-217,716.92

Finding the Fourth Proportional to 816,758.84, 1,225,196.64 and 217,716.92

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Solution

The fourth proportional to 816,758.84, 1,225,196.64 and 217,716.92 is: 326,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,758.84 : 1,225,196.64 = 217,716.92 : x
  2. Step 2: Convert to fraction form
    816,758.84/1,225,196.64 = 217,716.92/x
  3. Step 3: Cross multiply
    816,758.84x = 1,225,196.64 × 217,716.92
  4. Step 4: Simplify right side
    816,758.84x = 266,746,038,855.15
  5. Step 5: Solve for x
    x = 266,746,038,855.15/816,758.84
  6. Step 6: Final answer
    x = 326,590.94

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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.