Home / 1,279,449.74-1,919,696.63-824,278.85

Finding the Fourth Proportional to 1,279,449.74, 1,919,696.63 and 824,278.85

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Solution

The fourth proportional to 1,279,449.74, 1,919,696.63 and 824,278.85 is: 1,236,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,449.74 : 1,919,696.63 = 824,278.85 : x
  2. Step 2: Convert to fraction form
    1,279,449.74/1,919,696.63 = 824,278.85/x
  3. Step 3: Cross multiply
    1,279,449.74x = 1,919,696.63 × 824,278.85
  4. Step 4: Simplify right side
    1,279,449.74x = 1,582,365,316,805.40
  5. Step 5: Solve for x
    x = 1,582,365,316,805.40/1,279,449.74
  6. Step 6: Final answer
    x = 1,236,754.58

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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.