Home / 3,121,743.44-4,308,700.43-1,897,789.50

Finding the Fourth Proportional to 3,121,743.44, 4,308,700.43 and 1,897,789.50

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Solution

The fourth proportional to 3,121,743.44, 4,308,700.43 and 1,897,789.50 is: 2,619,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,743.44 : 4,308,700.43 = 1,897,789.50 : x
  2. Step 2: Convert to fraction form
    3,121,743.44/4,308,700.43 = 1,897,789.50/x
  3. Step 3: Cross multiply
    3,121,743.44x = 4,308,700.43 × 1,897,789.50
  4. Step 4: Simplify right side
    3,121,743.44x = 8,177,006,439,443.96
  5. Step 5: Solve for x
    x = 8,177,006,439,443.96/3,121,743.44
  6. Step 6: Final answer
    x = 2,619,371.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.