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Finding the Fourth Proportional to 978,802.80, 1,468,204.24 and 829,503.60

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Solution

The fourth proportional to 978,802.80, 1,468,204.24 and 829,503.60 is: 1,244,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,802.80 : 1,468,204.24 = 829,503.60 : x
  2. Step 2: Convert to fraction form
    978,802.80/1,468,204.24 = 829,503.60/x
  3. Step 3: Cross multiply
    978,802.80x = 1,468,204.24 × 829,503.60
  4. Step 4: Simplify right side
    978,802.80x = 1,217,880,702,615.26
  5. Step 5: Solve for x
    x = 1,217,880,702,615.26/978,802.80
  6. Step 6: Final answer
    x = 1,244,255.43

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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.