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Finding the Fourth Proportional to 978,990.76, 1,468,502.34 and 269,014.42

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Solution

The fourth proportional to 978,990.76, 1,468,502.34 and 269,014.42 is: 403,526.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,990.76 : 1,468,502.34 = 269,014.42 : x
  2. Step 2: Convert to fraction form
    978,990.76/1,468,502.34 = 269,014.42/x
  3. Step 3: Cross multiply
    978,990.76x = 1,468,502.34 × 269,014.42
  4. Step 4: Simplify right side
    978,990.76x = 395,048,305,263.74
  5. Step 5: Solve for x
    x = 395,048,305,263.74/978,990.76
  6. Step 6: Final answer
    x = 403,526.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.