Home / 1,278,051.60-1,917,349.56-379,495.92

Finding the Fourth Proportional to 1,278,051.60, 1,917,349.56 and 379,495.92

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Solution

The fourth proportional to 1,278,051.60, 1,917,349.56 and 379,495.92 is: 569,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,051.60 : 1,917,349.56 = 379,495.92 : x
  2. Step 2: Convert to fraction form
    1,278,051.60/1,917,349.56 = 379,495.92/x
  3. Step 3: Cross multiply
    1,278,051.60x = 1,917,349.56 × 379,495.92
  4. Step 4: Simplify right side
    1,278,051.60x = 727,626,335,233.80
  5. Step 5: Solve for x
    x = 727,626,335,233.80/1,278,051.60
  6. Step 6: Final answer
    x = 569,324.69

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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.