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Finding the Fourth Proportional to 978,582.12, 1,467,860.22 and 268,610.28

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Solution

The fourth proportional to 978,582.12, 1,467,860.22 and 268,610.28 is: 402,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,582.12 : 1,467,860.22 = 268,610.28 : x
  2. Step 2: Convert to fraction form
    978,582.12/1,467,860.22 = 268,610.28/x
  3. Step 3: Cross multiply
    978,582.12x = 1,467,860.22 × 268,610.28
  4. Step 4: Simplify right side
    978,582.12x = 394,282,344,695.06
  5. Step 5: Solve for x
    x = 394,282,344,695.06/978,582.12
  6. Step 6: Final answer
    x = 402,911.86

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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.