Home / 847,002.35-1,270,233.78-278,251.43

Finding the Fourth Proportional to 847,002.35, 1,270,233.78 and 278,251.43

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Solution

The fourth proportional to 847,002.35, 1,270,233.78 and 278,251.43 is: 417,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,002.35 : 1,270,233.78 = 278,251.43 : x
  2. Step 2: Convert to fraction form
    847,002.35/1,270,233.78 = 278,251.43/x
  3. Step 3: Cross multiply
    847,002.35x = 1,270,233.78 × 278,251.43
  4. Step 4: Simplify right side
    847,002.35x = 353,444,365,719.31
  5. Step 5: Solve for x
    x = 353,444,365,719.31/847,002.35
  6. Step 6: Final answer
    x = 417,288.53

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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.