Home / 1,231,087.68-1,698,952.32-687,253.68

Finding the Fourth Proportional to 1,231,087.68, 1,698,952.32 and 687,253.68

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Solution

The fourth proportional to 1,231,087.68, 1,698,952.32 and 687,253.68 is: 948,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,087.68 : 1,698,952.32 = 687,253.68 : x
  2. Step 2: Convert to fraction form
    1,231,087.68/1,698,952.32 = 687,253.68/x
  3. Step 3: Cross multiply
    1,231,087.68x = 1,698,952.32 × 687,253.68
  4. Step 4: Simplify right side
    1,231,087.68x = 1,167,611,234,064.54
  5. Step 5: Solve for x
    x = 1,167,611,234,064.54/1,231,087.68
  6. Step 6: Final answer
    x = 948,438.73

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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.