Home / 1,279,721.43-1,919,932.82-559,932.65

Finding the Fourth Proportional to 1,279,721.43, 1,919,932.82 and 559,932.65

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Solution

The fourth proportional to 1,279,721.43, 1,919,932.82 and 559,932.65 is: 840,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,721.43 : 1,919,932.82 = 559,932.65 : x
  2. Step 2: Convert to fraction form
    1,279,721.43/1,919,932.82 = 559,932.65/x
  3. Step 3: Cross multiply
    1,279,721.43x = 1,919,932.82 × 559,932.65
  4. Step 4: Simplify right side
    1,279,721.43x = 1,075,033,059,325.25
  5. Step 5: Solve for x
    x = 1,075,033,059,325.25/1,279,721.43
  6. Step 6: Final answer
    x = 840,052.40

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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.