Home / 3,261,839.40-4,892,378.76-865,870.20

Finding the Fourth Proportional to 3,261,839.40, 4,892,378.76 and 865,870.20

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Solution

The fourth proportional to 3,261,839.40, 4,892,378.76 and 865,870.20 is: 1,298,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261,839.40 : 4,892,378.76 = 865,870.20 : x
  2. Step 2: Convert to fraction form
    3,261,839.40/4,892,378.76 = 865,870.20/x
  3. Step 3: Cross multiply
    3,261,839.40x = 4,892,378.76 × 865,870.20
  4. Step 4: Simplify right side
    3,261,839.40x = 4,236,164,975,396.95
  5. Step 5: Solve for x
    x = 4,236,164,975,396.95/3,261,839.40
  6. Step 6: Final answer
    x = 1,298,704.34

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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.