Home / 1,286,644.35-1,775,534.94-742,761.75

Finding the Fourth Proportional to 1,286,644.35, 1,775,534.94 and 742,761.75

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Solution

The fourth proportional to 1,286,644.35, 1,775,534.94 and 742,761.75 is: 1,024,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,644.35 : 1,775,534.94 = 742,761.75 : x
  2. Step 2: Convert to fraction form
    1,286,644.35/1,775,534.94 = 742,761.75/x
  3. Step 3: Cross multiply
    1,286,644.35x = 1,775,534.94 × 742,761.75
  4. Step 4: Simplify right side
    1,286,644.35x = 1,318,799,439,220.55
  5. Step 5: Solve for x
    x = 1,318,799,439,220.55/1,286,644.35
  6. Step 6: Final answer
    x = 1,024,991.44

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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.