Home / 676,837-1,015,318.20-221,430.76

Finding the Fourth Proportional to 676,837, 1,015,318.20 and 221,430.76

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Solution

The fourth proportional to 676,837, 1,015,318.20 and 221,430.76 is: 332,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,837 : 1,015,318.20 = 221,430.76 : x
  2. Step 2: Convert to fraction form
    676,837/1,015,318.20 = 221,430.76/x
  3. Step 3: Cross multiply
    676,837x = 1,015,318.20 × 221,430.76
  4. Step 4: Simplify right side
    676,837x = 224,822,680,667.83
  5. Step 5: Solve for x
    x = 224,822,680,667.83/676,837
  6. Step 6: Final answer
    x = 332,166.65

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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.