Home / 987,163.62-1,480,835.79-277,186.87

Finding the Fourth Proportional to 987,163.62, 1,480,835.79 and 277,186.87

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Solution

The fourth proportional to 987,163.62, 1,480,835.79 and 277,186.87 is: 415,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,163.62 : 1,480,835.79 = 277,186.87 : x
  2. Step 2: Convert to fraction form
    987,163.62/1,480,835.79 = 277,186.87/x
  3. Step 3: Cross multiply
    987,163.62x = 1,480,835.79 × 277,186.87
  4. Step 4: Simplify right side
    987,163.62x = 410,468,239,465.12
  5. Step 5: Solve for x
    x = 410,468,239,465.12/987,163.62
  6. Step 6: Final answer
    x = 415,805.68

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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.