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Finding the Fourth Proportional to 984,369.60, 1,476,554.40 and 978,148.80

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Solution

The fourth proportional to 984,369.60, 1,476,554.40 and 978,148.80 is: 1,467,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,369.60 : 1,476,554.40 = 978,148.80 : x
  2. Step 2: Convert to fraction form
    984,369.60/1,476,554.40 = 978,148.80/x
  3. Step 3: Cross multiply
    984,369.60x = 1,476,554.40 × 978,148.80
  4. Step 4: Simplify right side
    984,369.60x = 1,444,289,914,494.72
  5. Step 5: Solve for x
    x = 1,444,289,914,494.72/984,369.60
  6. Step 6: Final answer
    x = 1,467,223.20

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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.