Home / 1,323,271.20-1,982,282.40-789,205.80

Finding the Fourth Proportional to 1,323,271.20, 1,982,282.40 and 789,205.80

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Solution

The fourth proportional to 1,323,271.20, 1,982,282.40 and 789,205.80 is: 1,182,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,271.20 : 1,982,282.40 = 789,205.80 : x
  2. Step 2: Convert to fraction form
    1,323,271.20/1,982,282.40 = 789,205.80/x
  3. Step 3: Cross multiply
    1,323,271.20x = 1,982,282.40 × 789,205.80
  4. Step 4: Simplify right side
    1,323,271.20x = 1,564,428,767,317.92
  5. Step 5: Solve for x
    x = 1,564,428,767,317.92/1,323,271.20
  6. Step 6: Final answer
    x = 1,182,243.49

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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.