Home / 421,032.28-630,517.38-270,799.96

Finding the Fourth Proportional to 421,032.28, 630,517.38 and 270,799.96

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Solution

The fourth proportional to 421,032.28, 630,517.38 and 270,799.96 is: 405,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,032.28 : 630,517.38 = 270,799.96 : x
  2. Step 2: Convert to fraction form
    421,032.28/630,517.38 = 270,799.96/x
  3. Step 3: Cross multiply
    421,032.28x = 630,517.38 × 270,799.96
  4. Step 4: Simplify right side
    421,032.28x = 170,744,081,283.31
  5. Step 5: Solve for x
    x = 170,744,081,283.31/421,032.28
  6. Step 6: Final answer
    x = 405,536.79

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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.