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Finding the Fourth Proportional to 662,638.40, 994,216.80 and 241,956.80

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Solution

The fourth proportional to 662,638.40, 994,216.80 and 241,956.80 is: 363,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,638.40 : 994,216.80 = 241,956.80 : x
  2. Step 2: Convert to fraction form
    662,638.40/994,216.80 = 241,956.80/x
  3. Step 3: Cross multiply
    662,638.40x = 994,216.80 × 241,956.80
  4. Step 4: Simplify right side
    662,638.40x = 240,557,515,434.24
  5. Step 5: Solve for x
    x = 240,557,515,434.24/662,638.40
  6. Step 6: Final answer
    x = 363,029.84

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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.