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Finding the Fourth Proportional to 978,775.04, 1,467,987.04 and 268,709.60

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Solution

The fourth proportional to 978,775.04, 1,467,987.04 and 268,709.60 is: 403,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,775.04 : 1,467,987.04 = 268,709.60 : x
  2. Step 2: Convert to fraction form
    978,775.04/1,467,987.04 = 268,709.60/x
  3. Step 3: Cross multiply
    978,775.04x = 1,467,987.04 × 268,709.60
  4. Step 4: Simplify right side
    978,775.04x = 394,462,210,323.58
  5. Step 5: Solve for x
    x = 394,462,210,323.58/978,775.04
  6. Step 6: Final answer
    x = 403,016.21

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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.