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Finding the Fourth Proportional to 648,398.20, 971,906.10 and 248,884.60

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Solution

The fourth proportional to 648,398.20, 971,906.10 and 248,884.60 is: 373,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,398.20 : 971,906.10 = 248,884.60 : x
  2. Step 2: Convert to fraction form
    648,398.20/971,906.10 = 248,884.60/x
  3. Step 3: Cross multiply
    648,398.20x = 971,906.10 × 248,884.60
  4. Step 4: Simplify right side
    648,398.20x = 241,892,460,936.06
  5. Step 5: Solve for x
    x = 241,892,460,936.06/648,398.20
  6. Step 6: Final answer
    x = 373,061.59

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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.