Home / 612,488.62-918,919.42-313,179.44

Finding the Fourth Proportional to 612,488.62, 918,919.42 and 313,179.44

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Solution

The fourth proportional to 612,488.62, 918,919.42 and 313,179.44 is: 469,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,488.62 : 918,919.42 = 313,179.44 : x
  2. Step 2: Convert to fraction form
    612,488.62/918,919.42 = 313,179.44/x
  3. Step 3: Cross multiply
    612,488.62x = 918,919.42 × 313,179.44
  4. Step 4: Simplify right side
    612,488.62x = 287,786,669,360.73
  5. Step 5: Solve for x
    x = 287,786,669,360.73/612,488.62
  6. Step 6: Final answer
    x = 469,864.52

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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.