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Finding the Fourth Proportional to 978,369.45, 1,467,554.18 and 473,172.45

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Solution

The fourth proportional to 978,369.45, 1,467,554.18 and 473,172.45 is: 709,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,369.45 : 1,467,554.18 = 473,172.45 : x
  2. Step 2: Convert to fraction form
    978,369.45/1,467,554.18 = 473,172.45/x
  3. Step 3: Cross multiply
    978,369.45x = 1,467,554.18 × 473,172.45
  4. Step 4: Simplify right side
    978,369.45x = 694,406,204,492.48
  5. Step 5: Solve for x
    x = 694,406,204,492.48/978,369.45
  6. Step 6: Final answer
    x = 709,758.68

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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.