Home / 3,988,270.80-5,982,406.20-1,857,646.80

Finding the Fourth Proportional to 3,988,270.80, 5,982,406.20 and 1,857,646.80

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Solution

The fourth proportional to 3,988,270.80, 5,982,406.20 and 1,857,646.80 is: 2,786,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,270.80 : 5,982,406.20 = 1,857,646.80 : x
  2. Step 2: Convert to fraction form
    3,988,270.80/5,982,406.20 = 1,857,646.80/x
  3. Step 3: Cross multiply
    3,988,270.80x = 5,982,406.20 × 1,857,646.80
  4. Step 4: Simplify right side
    3,988,270.80x = 11,113,197,733,730.16
  5. Step 5: Solve for x
    x = 11,113,197,733,730.16/3,988,270.80
  6. Step 6: Final answer
    x = 2,786,470.20

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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.