Home / 1,107,780.68-1,661,951.24-309,061.64

Finding the Fourth Proportional to 1,107,780.68, 1,661,951.24 and 309,061.64

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Solution

The fourth proportional to 1,107,780.68, 1,661,951.24 and 309,061.64 is: 463,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,780.68 : 1,661,951.24 = 309,061.64 : x
  2. Step 2: Convert to fraction form
    1,107,780.68/1,661,951.24 = 309,061.64/x
  3. Step 3: Cross multiply
    1,107,780.68x = 1,661,951.24 × 309,061.64
  4. Step 4: Simplify right side
    1,107,780.68x = 513,645,375,834.43
  5. Step 5: Solve for x
    x = 513,645,375,834.43/1,107,780.68
  6. Step 6: Final answer
    x = 463,670.64

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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.