Home / 852,534.76-1,278,771.90-212,842.12

Finding the Fourth Proportional to 852,534.76, 1,278,771.90 and 212,842.12

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Solution

The fourth proportional to 852,534.76, 1,278,771.90 and 212,842.12 is: 319,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,534.76 : 1,278,771.90 = 212,842.12 : x
  2. Step 2: Convert to fraction form
    852,534.76/1,278,771.90 = 212,842.12/x
  3. Step 3: Cross multiply
    852,534.76x = 1,278,771.90 × 212,842.12
  4. Step 4: Simplify right side
    852,534.76x = 272,176,522,192.43
  5. Step 5: Solve for x
    x = 272,176,522,192.43/852,534.76
  6. Step 6: Final answer
    x = 319,255.63

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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.