Home / 1,278,272.93-1,917,081.35-379,506.15

Finding the Fourth Proportional to 1,278,272.93, 1,917,081.35 and 379,506.15

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Solution

The fourth proportional to 1,278,272.93, 1,917,081.35 and 379,506.15 is: 569,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,272.93 : 1,917,081.35 = 379,506.15 : x
  2. Step 2: Convert to fraction form
    1,278,272.93/1,917,081.35 = 379,506.15/x
  3. Step 3: Cross multiply
    1,278,272.93x = 1,917,081.35 × 379,506.15
  4. Step 4: Simplify right side
    1,278,272.93x = 727,544,160,477.77
  5. Step 5: Solve for x
    x = 727,544,160,477.77/1,278,272.93
  6. Step 6: Final answer
    x = 569,161.83

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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.