Home / 380,982.52-571,417.62-100,519.48

Finding the Fourth Proportional to 380,982.52, 571,417.62 and 100,519.48

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Solution

The fourth proportional to 380,982.52, 571,417.62 and 100,519.48 is: 150,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,982.52 : 571,417.62 = 100,519.48 : x
  2. Step 2: Convert to fraction form
    380,982.52/571,417.62 = 100,519.48/x
  3. Step 3: Cross multiply
    380,982.52x = 571,417.62 × 100,519.48
  4. Step 4: Simplify right side
    380,982.52x = 57,438,602,025.24
  5. Step 5: Solve for x
    x = 57,438,602,025.24/380,982.52
  6. Step 6: Final answer
    x = 150,764.40

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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.