Home / 487,949.83-673,290.40-306,533.27

Finding the Fourth Proportional to 487,949.83, 673,290.40 and 306,533.27

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Solution

The fourth proportional to 487,949.83, 673,290.40 and 306,533.27 is: 422,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,949.83 : 673,290.40 = 306,533.27 : x
  2. Step 2: Convert to fraction form
    487,949.83/673,290.40 = 306,533.27/x
  3. Step 3: Cross multiply
    487,949.83x = 673,290.40 × 306,533.27
  4. Step 4: Simplify right side
    487,949.83x = 206,385,906,438.94
  5. Step 5: Solve for x
    x = 206,385,906,438.94/487,949.83
  6. Step 6: Final answer
    x = 422,965.43

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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.