Home / 3,988,265.84-5,981,143.95-1,291,965.47

Finding the Fourth Proportional to 3,988,265.84, 5,981,143.95 and 1,291,965.47

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Solution

The fourth proportional to 3,988,265.84, 5,981,143.95 and 1,291,965.47 is: 1,937,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,265.84 : 5,981,143.95 = 1,291,965.47 : x
  2. Step 2: Convert to fraction form
    3,988,265.84/5,981,143.95 = 1,291,965.47/x
  3. Step 3: Cross multiply
    3,988,265.84x = 5,981,143.95 × 1,291,965.47
  4. Step 4: Simplify right side
    3,988,265.84x = 7,727,431,424,593.69
  5. Step 5: Solve for x
    x = 7,727,431,424,593.69/3,988,265.84
  6. Step 6: Final answer
    x = 1,937,541.71

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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.