Home / 4,218,308.78-6,327,791.10-1,378,707.98

Finding the Fourth Proportional to 4,218,308.78, 6,327,791.10 and 1,378,707.98

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Solution

The fourth proportional to 4,218,308.78, 6,327,791.10 and 1,378,707.98 is: 2,068,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218,308.78 : 6,327,791.10 = 1,378,707.98 : x
  2. Step 2: Convert to fraction form
    4,218,308.78/6,327,791.10 = 1,378,707.98/x
  3. Step 3: Cross multiply
    4,218,308.78x = 6,327,791.10 × 1,378,707.98
  4. Step 4: Simplify right side
    4,218,308.78x = 8,724,176,053,704.02
  5. Step 5: Solve for x
    x = 8,724,176,053,704.02/4,218,308.78
  6. Step 6: Final answer
    x = 2,068,169.15

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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.