Home / 852,329-1,278,667.20-346,885.40

Finding the Fourth Proportional to 852,329, 1,278,667.20 and 346,885.40

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Solution

The fourth proportional to 852,329, 1,278,667.20 and 346,885.40 is: 520,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,329 : 1,278,667.20 = 346,885.40 : x
  2. Step 2: Convert to fraction form
    852,329/1,278,667.20 = 346,885.40/x
  3. Step 3: Cross multiply
    852,329x = 1,278,667.20 × 346,885.40
  4. Step 4: Simplify right side
    852,329x = 443,550,983,138.88
  5. Step 5: Solve for x
    x = 443,550,983,138.88/852,329
  6. Step 6: Final answer
    x = 520,398.79

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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.