Home / 1,224,005.36-1,689,105.02-680,131.26

Finding the Fourth Proportional to 1,224,005.36, 1,689,105.02 and 680,131.26

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Solution

The fourth proportional to 1,224,005.36, 1,689,105.02 and 680,131.26 is: 938,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,005.36 : 1,689,105.02 = 680,131.26 : x
  2. Step 2: Convert to fraction form
    1,224,005.36/1,689,105.02 = 680,131.26/x
  3. Step 3: Cross multiply
    1,224,005.36x = 1,689,105.02 × 680,131.26
  4. Step 4: Simplify right side
    1,224,005.36x = 1,148,813,122,124.27
  5. Step 5: Solve for x
    x = 1,148,813,122,124.27/1,224,005.36
  6. Step 6: Final answer
    x = 938,568.71

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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.