Home / 1,333,107.32-1,999,961.11-422,344.71

Finding the Fourth Proportional to 1,333,107.32, 1,999,961.11 and 422,344.71

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Solution

The fourth proportional to 1,333,107.32, 1,999,961.11 and 422,344.71 is: 633,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,107.32 : 1,999,961.11 = 422,344.71 : x
  2. Step 2: Convert to fraction form
    1,333,107.32/1,999,961.11 = 422,344.71/x
  3. Step 3: Cross multiply
    1,333,107.32x = 1,999,961.11 × 422,344.71
  4. Step 4: Simplify right side
    1,333,107.32x = 844,672,995,014.23
  5. Step 5: Solve for x
    x = 844,672,995,014.23/1,333,107.32
  6. Step 6: Final answer
    x = 633,612.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.