Home / 3,111,981.80-4,667,972.70-982,281.20

Finding the Fourth Proportional to 3,111,981.80, 4,667,972.70 and 982,281.20

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Solution

The fourth proportional to 3,111,981.80, 4,667,972.70 and 982,281.20 is: 1,473,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,981.80 : 4,667,972.70 = 982,281.20 : x
  2. Step 2: Convert to fraction form
    3,111,981.80/4,667,972.70 = 982,281.20/x
  3. Step 3: Cross multiply
    3,111,981.80x = 4,667,972.70 × 982,281.20
  4. Step 4: Simplify right side
    3,111,981.80x = 4,585,261,825,323.24
  5. Step 5: Solve for x
    x = 4,585,261,825,323.24/3,111,981.80
  6. Step 6: Final answer
    x = 1,473,421.80

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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.