Home / 1,211,310.16-1,671,682.49-667,445.81

Finding the Fourth Proportional to 1,211,310.16, 1,671,682.49 and 667,445.81

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Solution

The fourth proportional to 1,211,310.16, 1,671,682.49 and 667,445.81 is: 921,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,310.16 : 1,671,682.49 = 667,445.81 : x
  2. Step 2: Convert to fraction form
    1,211,310.16/1,671,682.49 = 667,445.81/x
  3. Step 3: Cross multiply
    1,211,310.16x = 1,671,682.49 × 667,445.81
  4. Step 4: Simplify right side
    1,211,310.16x = 1,115,757,464,408.15
  5. Step 5: Solve for x
    x = 1,115,757,464,408.15/1,211,310.16
  6. Step 6: Final answer
    x = 921,116.24

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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.