Home / 1,224,076.80-1,689,192.08-680,198.48

Finding the Fourth Proportional to 1,224,076.80, 1,689,192.08 and 680,198.48

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Solution

The fourth proportional to 1,224,076.80, 1,689,192.08 and 680,198.48 is: 938,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,076.80 : 1,689,192.08 = 680,198.48 : x
  2. Step 2: Convert to fraction form
    1,224,076.80/1,689,192.08 = 680,198.48/x
  3. Step 3: Cross multiply
    1,224,076.80x = 1,689,192.08 × 680,198.48
  4. Step 4: Simplify right side
    1,224,076.80x = 1,148,985,885,244.04
  5. Step 5: Solve for x
    x = 1,148,985,885,244.04/1,224,076.80
  6. Step 6: Final answer
    x = 938,655.06

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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.