Home / 987,975.06-1,482,083.79-278,003.79

Finding the Fourth Proportional to 987,975.06, 1,482,083.79 and 278,003.79

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Solution

The fourth proportional to 987,975.06, 1,482,083.79 and 278,003.79 is: 417,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,975.06 : 1,482,083.79 = 278,003.79 : x
  2. Step 2: Convert to fraction form
    987,975.06/1,482,083.79 = 278,003.79/x
  3. Step 3: Cross multiply
    987,975.06x = 1,482,083.79 × 278,003.79
  4. Step 4: Simplify right side
    987,975.06x = 412,024,910,717.56
  5. Step 5: Solve for x
    x = 412,024,910,717.56/987,975.06
  6. Step 6: Final answer
    x = 417,039.79

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1.5x scale

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.