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Finding the Fourth Proportional to 978,838.58, 1,468,255.03 and 268,867.30

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Solution

The fourth proportional to 978,838.58, 1,468,255.03 and 268,867.30 is: 403,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,838.58 : 1,468,255.03 = 268,867.30 : x
  2. Step 2: Convert to fraction form
    978,838.58/1,468,255.03 = 268,867.30/x
  3. Step 3: Cross multiply
    978,838.58x = 1,468,255.03 × 268,867.30
  4. Step 4: Simplify right side
    978,838.58x = 394,765,765,627.52
  5. Step 5: Solve for x
    x = 394,765,765,627.52/978,838.58
  6. Step 6: Final answer
    x = 403,300.17

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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.