Home / 1,211,468.46-1,671,837.43-667,623.72

Finding the Fourth Proportional to 1,211,468.46, 1,671,837.43 and 667,623.72

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Solution

The fourth proportional to 1,211,468.46, 1,671,837.43 and 667,623.72 is: 921,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,468.46 : 1,671,837.43 = 667,623.72 : x
  2. Step 2: Convert to fraction form
    1,211,468.46/1,671,837.43 = 667,623.72/x
  3. Step 3: Cross multiply
    1,211,468.46x = 1,671,837.43 × 667,623.72
  4. Step 4: Simplify right side
    1,211,468.46x = 1,116,158,324,251.84
  5. Step 5: Solve for x
    x = 1,116,158,324,251.84/1,211,468.46
  6. Step 6: Final answer
    x = 921,326.77

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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.