Home / 1,338,618.02-2,007,926.82-391,988.43

Finding the Fourth Proportional to 1,338,618.02, 2,007,926.82 and 391,988.43

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Solution

The fourth proportional to 1,338,618.02, 2,007,926.82 and 391,988.43 is: 587,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,618.02 : 2,007,926.82 = 391,988.43 : x
  2. Step 2: Convert to fraction form
    1,338,618.02/2,007,926.82 = 391,988.43/x
  3. Step 3: Cross multiply
    1,338,618.02x = 2,007,926.82 × 391,988.43
  4. Step 4: Simplify right side
    1,338,618.02x = 787,084,081,726.69
  5. Step 5: Solve for x
    x = 787,084,081,726.69/1,338,618.02
  6. Step 6: Final answer
    x = 587,982.59

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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.