Home / 3,988,863.40-5,983,343.70-1,293,167.20

Finding the Fourth Proportional to 3,988,863.40, 5,983,343.70 and 1,293,167.20

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Solution

The fourth proportional to 3,988,863.40, 5,983,343.70 and 1,293,167.20 is: 1,939,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,863.40 : 5,983,343.70 = 1,293,167.20 : x
  2. Step 2: Convert to fraction form
    3,988,863.40/5,983,343.70 = 1,293,167.20/x
  3. Step 3: Cross multiply
    3,988,863.40x = 5,983,343.70 × 1,293,167.20
  4. Step 4: Simplify right side
    3,988,863.40x = 7,737,463,819,166.64
  5. Step 5: Solve for x
    x = 7,737,463,819,166.64/3,988,863.40
  6. Step 6: Final answer
    x = 1,939,766.56

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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.