Home / 3,988,015.40-5,982,023.10-1,328,623.40

Finding the Fourth Proportional to 3,988,015.40, 5,982,023.10 and 1,328,623.40

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Solution

The fourth proportional to 3,988,015.40, 5,982,023.10 and 1,328,623.40 is: 1,992,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,015.40 : 5,982,023.10 = 1,328,623.40 : x
  2. Step 2: Convert to fraction form
    3,988,015.40/5,982,023.10 = 1,328,623.40/x
  3. Step 3: Cross multiply
    3,988,015.40x = 5,982,023.10 × 1,328,623.40
  4. Step 4: Simplify right side
    3,988,015.40x = 7,947,855,870,000.54
  5. Step 5: Solve for x
    x = 7,947,855,870,000.54/3,988,015.40
  6. Step 6: Final answer
    x = 1,992,935.10

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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.