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Finding the Fourth Proportional to 984,650.10, 1,476,975.15 and 978,429.30

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Solution

The fourth proportional to 984,650.10, 1,476,975.15 and 978,429.30 is: 1,467,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,650.10 : 1,476,975.15 = 978,429.30 : x
  2. Step 2: Convert to fraction form
    984,650.10/1,476,975.15 = 978,429.30/x
  3. Step 3: Cross multiply
    984,650.10x = 1,476,975.15 × 978,429.30
  4. Step 4: Simplify right side
    984,650.10x = 1,445,115,762,131.90
  5. Step 5: Solve for x
    x = 1,445,115,762,131.90/984,650.10
  6. Step 6: Final answer
    x = 1,467,643.95

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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.