Home / 2,178,375.23-3,006,240.76-1,211,575.43

Finding the Fourth Proportional to 2,178,375.23, 3,006,240.76 and 1,211,575.43

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Solution

The fourth proportional to 2,178,375.23, 3,006,240.76 and 1,211,575.43 is: 1,672,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,375.23 : 3,006,240.76 = 1,211,575.43 : x
  2. Step 2: Convert to fraction form
    2,178,375.23/3,006,240.76 = 1,211,575.43/x
  3. Step 3: Cross multiply
    2,178,375.23x = 3,006,240.76 × 1,211,575.43
  4. Step 4: Simplify right side
    2,178,375.23x = 3,642,287,444,509.47
  5. Step 5: Solve for x
    x = 3,642,287,444,509.47/2,178,375.23
  6. Step 6: Final answer
    x = 1,672,020.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.