Home / 1,266,128.82-1,747,376.55-756,820.26

Finding the Fourth Proportional to 1,266,128.82, 1,747,376.55 and 756,820.26

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Solution

The fourth proportional to 1,266,128.82, 1,747,376.55 and 756,820.26 is: 1,044,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,128.82 : 1,747,376.55 = 756,820.26 : x
  2. Step 2: Convert to fraction form
    1,266,128.82/1,747,376.55 = 756,820.26/x
  3. Step 3: Cross multiply
    1,266,128.82x = 1,747,376.55 × 756,820.26
  4. Step 4: Simplify right side
    1,266,128.82x = 1,322,449,974,888.90
  5. Step 5: Solve for x
    x = 1,322,449,974,888.90/1,266,128.82
  6. Step 6: Final answer
    x = 1,044,482.96

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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.