Home / 525,348.78-787,944.79-146,229.90

Finding the Fourth Proportional to 525,348.78, 787,944.79 and 146,229.90

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Solution

The fourth proportional to 525,348.78, 787,944.79 and 146,229.90 is: 219,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,348.78 : 787,944.79 = 146,229.90 : x
  2. Step 2: Convert to fraction form
    525,348.78/787,944.79 = 146,229.90/x
  3. Step 3: Cross multiply
    525,348.78x = 787,944.79 × 146,229.90
  4. Step 4: Simplify right side
    525,348.78x = 115,221,087,847.22
  5. Step 5: Solve for x
    x = 115,221,087,847.22/525,348.78
  6. Step 6: Final answer
    x = 219,323.03

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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.