Home / 847,002.79-1,270,234.45-278,251.88

Finding the Fourth Proportional to 847,002.79, 1,270,234.45 and 278,251.88

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Solution

The fourth proportional to 847,002.79, 1,270,234.45 and 278,251.88 is: 417,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,002.79 : 1,270,234.45 = 278,251.88 : x
  2. Step 2: Convert to fraction form
    847,002.79/1,270,234.45 = 278,251.88/x
  3. Step 3: Cross multiply
    847,002.79x = 1,270,234.45 × 278,251.88
  4. Step 4: Simplify right side
    847,002.79x = 353,445,117,749.91
  5. Step 5: Solve for x
    x = 353,445,117,749.91/847,002.79
  6. Step 6: Final answer
    x = 417,289.20

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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.