Home / 1,420,383.69-1,960,229.57-808,536.74

Finding the Fourth Proportional to 1,420,383.69, 1,960,229.57 and 808,536.74

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Solution

The fourth proportional to 1,420,383.69, 1,960,229.57 and 808,536.74 is: 1,115,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,383.69 : 1,960,229.57 = 808,536.74 : x
  2. Step 2: Convert to fraction form
    1,420,383.69/1,960,229.57 = 808,536.74/x
  3. Step 3: Cross multiply
    1,420,383.69x = 1,960,229.57 × 808,536.74
  4. Step 4: Simplify right side
    1,420,383.69x = 1,584,917,612,335.57
  5. Step 5: Solve for x
    x = 1,584,917,612,335.57/1,420,383.69
  6. Step 6: Final answer
    x = 1,115,837.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.