Home / 674,318.78-1,011,478.18-274,990.70

Finding the Fourth Proportional to 674,318.78, 1,011,478.18 and 274,990.70

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Solution

The fourth proportional to 674,318.78, 1,011,478.18 and 274,990.70 is: 412,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,318.78 : 1,011,478.18 = 274,990.70 : x
  2. Step 2: Convert to fraction form
    674,318.78/1,011,478.18 = 274,990.70/x
  3. Step 3: Cross multiply
    674,318.78x = 1,011,478.18 × 274,990.70
  4. Step 4: Simplify right side
    674,318.78x = 278,147,092,752.93
  5. Step 5: Solve for x
    x = 278,147,092,752.93/674,318.78
  6. Step 6: Final answer
    x = 412,486.05

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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.