Home / 486,020.79-670,742.37-271,202.72

Finding the Fourth Proportional to 486,020.79, 670,742.37 and 271,202.72

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Solution

The fourth proportional to 486,020.79, 670,742.37 and 271,202.72 is: 374,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,020.79 : 670,742.37 = 271,202.72 : x
  2. Step 2: Convert to fraction form
    486,020.79/670,742.37 = 271,202.72/x
  3. Step 3: Cross multiply
    486,020.79x = 670,742.37 × 271,202.72
  4. Step 4: Simplify right side
    486,020.79x = 181,907,151,809.54
  5. Step 5: Solve for x
    x = 181,907,151,809.54/486,020.79
  6. Step 6: Final answer
    x = 374,278.54

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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.