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Finding the Fourth Proportional to 652,513.80, 978,722.10 and 273,336.60

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Solution

The fourth proportional to 652,513.80, 978,722.10 and 273,336.60 is: 409,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,513.80 : 978,722.10 = 273,336.60 : x
  2. Step 2: Convert to fraction form
    652,513.80/978,722.10 = 273,336.60/x
  3. Step 3: Cross multiply
    652,513.80x = 978,722.10 × 273,336.60
  4. Step 4: Simplify right side
    652,513.80x = 267,520,571,158.86
  5. Step 5: Solve for x
    x = 267,520,571,158.86/652,513.80
  6. Step 6: Final answer
    x = 409,984.54

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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.