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Finding the Fourth Proportional to 982,863, 1,474,649.27 and 343,260.87

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Solution

The fourth proportional to 982,863, 1,474,649.27 and 343,260.87 is: 515,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,863 : 1,474,649.27 = 343,260.87 : x
  2. Step 2: Convert to fraction form
    982,863/1,474,649.27 = 343,260.87/x
  3. Step 3: Cross multiply
    982,863x = 1,474,649.27 × 343,260.87
  4. Step 4: Simplify right side
    982,863x = 506,189,389,648.76
  5. Step 5: Solve for x
    x = 506,189,389,648.76/982,863
  6. Step 6: Final answer
    x = 515,015.21

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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.