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Finding the Fourth Proportional to 978,109.92, 1,467,376.02 and 304,178.04

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Solution

The fourth proportional to 978,109.92, 1,467,376.02 and 304,178.04 is: 456,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,109.92 : 1,467,376.02 = 304,178.04 : x
  2. Step 2: Convert to fraction form
    978,109.92/1,467,376.02 = 304,178.04/x
  3. Step 3: Cross multiply
    978,109.92x = 1,467,376.02 × 304,178.04
  4. Step 4: Simplify right side
    978,109.92x = 446,343,561,706.60
  5. Step 5: Solve for x
    x = 446,343,561,706.60/978,109.92
  6. Step 6: Final answer
    x = 456,332.72

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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.