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Finding the Fourth Proportional to 680,993.21, 939,759.03 and 375,098.24

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Solution

The fourth proportional to 680,993.21, 939,759.03 and 375,098.24 is: 517,629.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,993.21 : 939,759.03 = 375,098.24 : x
  2. Step 2: Convert to fraction form
    680,993.21/939,759.03 = 375,098.24/x
  3. Step 3: Cross multiply
    680,993.21x = 939,759.03 × 375,098.24
  4. Step 4: Simplify right side
    680,993.21x = 352,501,958,177.11
  5. Step 5: Solve for x
    x = 352,501,958,177.11/680,993.21
  6. Step 6: Final answer
    x = 517,629.18

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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.