Home / 1,210,697.88-1,815,416.31-451,915.44

Finding the Fourth Proportional to 1,210,697.88, 1,815,416.31 and 451,915.44

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Solution

The fourth proportional to 1,210,697.88, 1,815,416.31 and 451,915.44 is: 677,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,697.88 : 1,815,416.31 = 451,915.44 : x
  2. Step 2: Convert to fraction form
    1,210,697.88/1,815,416.31 = 451,915.44/x
  3. Step 3: Cross multiply
    1,210,697.88x = 1,815,416.31 × 451,915.44
  4. Step 4: Simplify right side
    1,210,697.88x = 820,414,660,516.83
  5. Step 5: Solve for x
    x = 820,414,660,516.83/1,210,697.88
  6. Step 6: Final answer
    x = 677,637.81

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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.