Home / 2,640,312.50-3,961,321.67-1,221,299.42

Finding the Fourth Proportional to 2,640,312.50, 3,961,321.67 and 1,221,299.42

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Solution

The fourth proportional to 2,640,312.50, 3,961,321.67 and 1,221,299.42 is: 1,832,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,312.50 : 3,961,321.67 = 1,221,299.42 : x
  2. Step 2: Convert to fraction form
    2,640,312.50/3,961,321.67 = 1,221,299.42/x
  3. Step 3: Cross multiply
    2,640,312.50x = 3,961,321.67 × 1,221,299.42
  4. Step 4: Simplify right side
    2,640,312.50x = 4,837,959,841,251.07
  5. Step 5: Solve for x
    x = 4,837,959,841,251.07/2,640,312.50
  6. Step 6: Final answer
    x = 1,832,343.65

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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.