Home / 1,208,474.88-1,811,468.16-647,358.72

Finding the Fourth Proportional to 1,208,474.88, 1,811,468.16 and 647,358.72

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Solution

The fourth proportional to 1,208,474.88, 1,811,468.16 and 647,358.72 is: 970,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,474.88 : 1,811,468.16 = 647,358.72 : x
  2. Step 2: Convert to fraction form
    1,208,474.88/1,811,468.16 = 647,358.72/x
  3. Step 3: Cross multiply
    1,208,474.88x = 1,811,468.16 × 647,358.72
  4. Step 4: Simplify right side
    1,208,474.88x = 1,172,669,709,378.36
  5. Step 5: Solve for x
    x = 1,172,669,709,378.36/1,208,474.88
  6. Step 6: Final answer
    x = 970,371.61

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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.