Home / 918,727.55-1,378,371.08-469,763.79

Finding the Fourth Proportional to 918,727.55, 1,378,371.08 and 469,763.79

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Solution

The fourth proportional to 918,727.55, 1,378,371.08 and 469,763.79 is: 704,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,727.55 : 1,378,371.08 = 469,763.79 : x
  2. Step 2: Convert to fraction form
    918,727.55/1,378,371.08 = 469,763.79/x
  3. Step 3: Cross multiply
    918,727.55x = 1,378,371.08 × 469,763.79
  4. Step 4: Simplify right side
    918,727.55x = 647,508,813,326.52
  5. Step 5: Solve for x
    x = 647,508,813,326.52/918,727.55
  6. Step 6: Final answer
    x = 704,788.72

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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.