Home / 521,448.96-782,258.04-161,535.72

Finding the Fourth Proportional to 521,448.96, 782,258.04 and 161,535.72

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Solution

The fourth proportional to 521,448.96, 782,258.04 and 161,535.72 is: 242,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,448.96 : 782,258.04 = 161,535.72 : x
  2. Step 2: Convert to fraction form
    521,448.96/782,258.04 = 161,535.72/x
  3. Step 3: Cross multiply
    521,448.96x = 782,258.04 × 161,535.72
  4. Step 4: Simplify right side
    521,448.96x = 126,362,615,717.19
  5. Step 5: Solve for x
    x = 126,362,615,717.19/521,448.96
  6. Step 6: Final answer
    x = 242,329.79

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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.