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Finding the Fourth Proportional to 988,866.90, 1,483,300.35 and 978,369.30

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Solution

The fourth proportional to 988,866.90, 1,483,300.35 and 978,369.30 is: 1,467,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,866.90 : 1,483,300.35 = 978,369.30 : x
  2. Step 2: Convert to fraction form
    988,866.90/1,483,300.35 = 978,369.30/x
  3. Step 3: Cross multiply
    988,866.90x = 1,483,300.35 × 978,369.30
  4. Step 4: Simplify right side
    988,866.90x = 1,451,215,525,119.26
  5. Step 5: Solve for x
    x = 1,451,215,525,119.26/988,866.90
  6. Step 6: Final answer
    x = 1,467,553.95

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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.