Home / 4,745,079.78-7,117,816.50-1,379,286.78

Finding the Fourth Proportional to 4,745,079.78, 7,117,816.50 and 1,379,286.78

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Solution

The fourth proportional to 4,745,079.78, 7,117,816.50 and 1,379,286.78 is: 2,068,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745,079.78 : 7,117,816.50 = 1,379,286.78 : x
  2. Step 2: Convert to fraction form
    4,745,079.78/7,117,816.50 = 1,379,286.78/x
  3. Step 3: Cross multiply
    4,745,079.78x = 7,117,816.50 × 1,379,286.78
  4. Step 4: Simplify right side
    4,745,079.78x = 9,817,510,200,915.87
  5. Step 5: Solve for x
    x = 9,817,510,200,915.87/4,745,079.78
  6. Step 6: Final answer
    x = 2,068,987.38

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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.