Home / 1,212,176.14-1,672,878.23-668,310.90

Finding the Fourth Proportional to 1,212,176.14, 1,672,878.23 and 668,310.90

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Solution

The fourth proportional to 1,212,176.14, 1,672,878.23 and 668,310.90 is: 922,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,176.14 : 1,672,878.23 = 668,310.90 : x
  2. Step 2: Convert to fraction form
    1,212,176.14/1,672,878.23 = 668,310.90/x
  3. Step 3: Cross multiply
    1,212,176.14x = 1,672,878.23 × 668,310.90
  4. Step 4: Simplify right side
    1,212,176.14x = 1,118,002,755,481.71
  5. Step 5: Solve for x
    x = 1,118,002,755,481.71/1,212,176.14
  6. Step 6: Final answer
    x = 922,310.48

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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.