Home / 380,945.31-571,513.10-268,844.47

Finding the Fourth Proportional to 380,945.31, 571,513.10 and 268,844.47

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Solution

The fourth proportional to 380,945.31, 571,513.10 and 268,844.47 is: 403,333.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,945.31 : 571,513.10 = 268,844.47 : x
  2. Step 2: Convert to fraction form
    380,945.31/571,513.10 = 268,844.47/x
  3. Step 3: Cross multiply
    380,945.31x = 571,513.10 × 268,844.47
  4. Step 4: Simplify right side
    380,945.31x = 153,648,133,694.55
  5. Step 5: Solve for x
    x = 153,648,133,694.55/380,945.31
  6. Step 6: Final answer
    x = 403,333.84

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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.