Home / 1,890,321.87-2,608,799.13-1,074,781.47

Finding the Fourth Proportional to 1,890,321.87, 2,608,799.13 and 1,074,781.47

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Solution

The fourth proportional to 1,890,321.87, 2,608,799.13 and 1,074,781.47 is: 1,483,286.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,321.87 : 2,608,799.13 = 1,074,781.47 : x
  2. Step 2: Convert to fraction form
    1,890,321.87/2,608,799.13 = 1,074,781.47/x
  3. Step 3: Cross multiply
    1,890,321.87x = 2,608,799.13 × 1,074,781.47
  4. Step 4: Simplify right side
    1,890,321.87x = 2,803,888,963,876.12
  5. Step 5: Solve for x
    x = 2,803,888,963,876.12/1,890,321.87
  6. Step 6: Final answer
    x = 1,483,286.53

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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.