Home / 2,612,937.81-3,919,405.28-815,975.29

Finding the Fourth Proportional to 2,612,937.81, 3,919,405.28 and 815,975.29

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Solution

The fourth proportional to 2,612,937.81, 3,919,405.28 and 815,975.29 is: 1,223,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,937.81 : 3,919,405.28 = 815,975.29 : x
  2. Step 2: Convert to fraction form
    2,612,937.81/3,919,405.28 = 815,975.29/x
  3. Step 3: Cross multiply
    2,612,937.81x = 3,919,405.28 × 815,975.29
  4. Step 4: Simplify right side
    2,612,937.81x = 3,198,137,860,794.91
  5. Step 5: Solve for x
    x = 3,198,137,860,794.91/2,612,937.81
  6. Step 6: Final answer
    x = 1,223,962.49

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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.