Home / 978,139.28-1,467,219.24-268,167.44

Finding the Fourth Proportional to 978,139.28, 1,467,219.24 and 268,167.44

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Solution

The fourth proportional to 978,139.28, 1,467,219.24 and 268,167.44 is: 402,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,139.28 : 1,467,219.24 = 268,167.44 : x
  2. Step 2: Convert to fraction form
    978,139.28/1,467,219.24 = 268,167.44/x
  3. Step 3: Cross multiply
    978,139.28x = 1,467,219.24 × 268,167.44
  4. Step 4: Simplify right side
    978,139.28x = 393,460,427,509.55
  5. Step 5: Solve for x
    x = 393,460,427,509.55/978,139.28
  6. Step 6: Final answer
    x = 402,253.99

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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.