Home / 427,476.56-641,362.20-190,982.48

Finding the Fourth Proportional to 427,476.56, 641,362.20 and 190,982.48

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Solution

The fourth proportional to 427,476.56, 641,362.20 and 190,982.48 is: 286,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,476.56 : 641,362.20 = 190,982.48 : x
  2. Step 2: Convert to fraction form
    427,476.56/641,362.20 = 190,982.48/x
  3. Step 3: Cross multiply
    427,476.56x = 641,362.20 × 190,982.48
  4. Step 4: Simplify right side
    427,476.56x = 122,488,943,534.26
  5. Step 5: Solve for x
    x = 122,488,943,534.26/427,476.56
  6. Step 6: Final answer
    x = 286,539.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.