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Finding the Fourth Proportional to 2,648,907.40, 3,973,652.70 and 966,375.40

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Solution

The fourth proportional to 2,648,907.40, 3,973,652.70 and 966,375.40 is: 1,449,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,907.40 : 3,973,652.70 = 966,375.40 : x
  2. Step 2: Convert to fraction form
    2,648,907.40/3,973,652.70 = 966,375.40/x
  3. Step 3: Cross multiply
    2,648,907.40x = 3,973,652.70 × 966,375.40
  4. Step 4: Simplify right side
    2,648,907.40x = 3,840,040,217,423.58
  5. Step 5: Solve for x
    x = 3,840,040,217,423.58/2,648,907.40
  6. Step 6: Final answer
    x = 1,449,669.48

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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.