Home / 852,780.91-1,279,153.79-284,203.30

Finding the Fourth Proportional to 852,780.91, 1,279,153.79 and 284,203.30

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Solution

The fourth proportional to 852,780.91, 1,279,153.79 and 284,203.30 is: 426,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,780.91 : 1,279,153.79 = 284,203.30 : x
  2. Step 2: Convert to fraction form
    852,780.91/1,279,153.79 = 284,203.30/x
  3. Step 3: Cross multiply
    852,780.91x = 1,279,153.79 × 284,203.30
  4. Step 4: Simplify right side
    852,780.91x = 363,539,721,929.74
  5. Step 5: Solve for x
    x = 363,539,721,929.74/852,780.91
  6. Step 6: Final answer
    x = 426,299.09

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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.