Home / 1,266,782.21-1,748,187.74-722,907.17

Finding the Fourth Proportional to 1,266,782.21, 1,748,187.74 and 722,907.17

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Solution

The fourth proportional to 1,266,782.21, 1,748,187.74 and 722,907.17 is: 997,628.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,782.21 : 1,748,187.74 = 722,907.17 : x
  2. Step 2: Convert to fraction form
    1,266,782.21/1,748,187.74 = 722,907.17/x
  3. Step 3: Cross multiply
    1,266,782.21x = 1,748,187.74 × 722,907.17
  4. Step 4: Simplify right side
    1,266,782.21x = 1,263,777,448,137.56
  5. Step 5: Solve for x
    x = 1,263,777,448,137.56/1,266,782.21
  6. Step 6: Final answer
    x = 997,628.04

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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.