Home / 487,195.50-672,282.54-305,849.46

Finding the Fourth Proportional to 487,195.50, 672,282.54 and 305,849.46

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Solution

The fourth proportional to 487,195.50, 672,282.54 and 305,849.46 is: 422,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,195.50 : 672,282.54 = 305,849.46 : x
  2. Step 2: Convert to fraction form
    487,195.50/672,282.54 = 305,849.46/x
  3. Step 3: Cross multiply
    487,195.50x = 672,282.54 × 305,849.46
  4. Step 4: Simplify right side
    487,195.50x = 205,617,251,826.43
  5. Step 5: Solve for x
    x = 205,617,251,826.43/487,195.50
  6. Step 6: Final answer
    x = 422,042.59

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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.