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Finding the Fourth Proportional to 978,331.30, 1,467,504.76 and 401,806.04

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Solution

The fourth proportional to 978,331.30, 1,467,504.76 and 401,806.04 is: 602,712.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,331.30 : 1,467,504.76 = 401,806.04 : x
  2. Step 2: Convert to fraction form
    978,331.30/1,467,504.76 = 401,806.04/x
  3. Step 3: Cross multiply
    978,331.30x = 1,467,504.76 × 401,806.04
  4. Step 4: Simplify right side
    978,331.30x = 589,652,276,296.75
  5. Step 5: Solve for x
    x = 589,652,276,296.75/978,331.30
  6. Step 6: Final answer
    x = 602,712.27

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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.