Home / 1,266,780.40-1,748,185.23-722,905.36

Finding the Fourth Proportional to 1,266,780.40, 1,748,185.23 and 722,905.36

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Solution

The fourth proportional to 1,266,780.40, 1,748,185.23 and 722,905.36 is: 997,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,780.40 : 1,748,185.23 = 722,905.36 : x
  2. Step 2: Convert to fraction form
    1,266,780.40/1,748,185.23 = 722,905.36/x
  3. Step 3: Cross multiply
    1,266,780.40x = 1,748,185.23 × 722,905.36
  4. Step 4: Simplify right side
    1,266,780.40x = 1,263,772,471,380.26
  5. Step 5: Solve for x
    x = 1,263,772,471,380.26/1,266,780.40
  6. Step 6: Final answer
    x = 997,625.53

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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.