Home / 401,540.40-602,440.20-268,570.80

Finding the Fourth Proportional to 401,540.40, 602,440.20 and 268,570.80

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Solution

The fourth proportional to 401,540.40, 602,440.20 and 268,570.80 is: 402,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,540.40 : 602,440.20 = 268,570.80 : x
  2. Step 2: Convert to fraction form
    401,540.40/602,440.20 = 268,570.80/x
  3. Step 3: Cross multiply
    401,540.40x = 602,440.20 × 268,570.80
  4. Step 4: Simplify right side
    401,540.40x = 161,797,846,466.16
  5. Step 5: Solve for x
    x = 161,797,846,466.16/401,540.40
  6. Step 6: Final answer
    x = 402,942.88

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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.