Home / 1,261,676.88-1,741,088.52-688,715.28

Finding the Fourth Proportional to 1,261,676.88, 1,741,088.52 and 688,715.28

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Solution

The fourth proportional to 1,261,676.88, 1,741,088.52 and 688,715.28 is: 950,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,676.88 : 1,741,088.52 = 688,715.28 : x
  2. Step 2: Convert to fraction form
    1,261,676.88/1,741,088.52 = 688,715.28/x
  3. Step 3: Cross multiply
    1,261,676.88x = 1,741,088.52 × 688,715.28
  4. Step 4: Simplify right side
    1,261,676.88x = 1,199,114,267,556.59
  5. Step 5: Solve for x
    x = 1,199,114,267,556.59/1,261,676.88
  6. Step 6: Final answer
    x = 950,413.13

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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.