Home / 3,988,264.84-5,981,142.45-1,291,964.47

Finding the Fourth Proportional to 3,988,264.84, 5,981,142.45 and 1,291,964.47

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Solution

The fourth proportional to 3,988,264.84, 5,981,142.45 and 1,291,964.47 is: 1,937,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,264.84 : 5,981,142.45 = 1,291,964.47 : x
  2. Step 2: Convert to fraction form
    3,988,264.84/5,981,142.45 = 1,291,964.47/x
  3. Step 3: Cross multiply
    3,988,264.84x = 5,981,142.45 × 1,291,964.47
  4. Step 4: Simplify right side
    3,988,264.84x = 7,727,423,505,503.04
  5. Step 5: Solve for x
    x = 7,727,423,505,503.04/3,988,264.84
  6. Step 6: Final answer
    x = 1,937,540.21

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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.