Home / 458,977.83-687,974.53-221,994.51

Finding the Fourth Proportional to 458,977.83, 687,974.53 and 221,994.51

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Solution

The fourth proportional to 458,977.83, 687,974.53 and 221,994.51 is: 332,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,977.83 : 687,974.53 = 221,994.51 : x
  2. Step 2: Convert to fraction form
    458,977.83/687,974.53 = 221,994.51/x
  3. Step 3: Cross multiply
    458,977.83x = 687,974.53 × 221,994.51
  4. Step 4: Simplify right side
    458,977.83x = 152,726,568,679.83
  5. Step 5: Solve for x
    x = 152,726,568,679.83/458,977.83
  6. Step 6: Final answer
    x = 332,753.69

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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.