Home / 1,333,106.32-1,999,959.61-422,343.71

Finding the Fourth Proportional to 1,333,106.32, 1,999,959.61 and 422,343.71

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Solution

The fourth proportional to 1,333,106.32, 1,999,959.61 and 422,343.71 is: 633,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,106.32 : 1,999,959.61 = 422,343.71 : x
  2. Step 2: Convert to fraction form
    1,333,106.32/1,999,959.61 = 422,343.71/x
  3. Step 3: Cross multiply
    1,333,106.32x = 1,999,959.61 × 422,343.71
  4. Step 4: Simplify right side
    1,333,106.32x = 844,670,361,537.55
  5. Step 5: Solve for x
    x = 844,670,361,537.55/1,333,106.32
  6. Step 6: Final answer
    x = 633,610.65

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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.