Home / 1,284,399.60-1,926,603.96-431,446.92

Finding the Fourth Proportional to 1,284,399.60, 1,926,603.96 and 431,446.92

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Solution

The fourth proportional to 1,284,399.60, 1,926,603.96 and 431,446.92 is: 647,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,399.60 : 1,926,603.96 = 431,446.92 : x
  2. Step 2: Convert to fraction form
    1,284,399.60/1,926,603.96 = 431,446.92/x
  3. Step 3: Cross multiply
    1,284,399.60x = 1,926,603.96 × 431,446.92
  4. Step 4: Simplify right side
    1,284,399.60x = 831,227,344,601.80
  5. Step 5: Solve for x
    x = 831,227,344,601.80/1,284,399.60
  6. Step 6: Final answer
    x = 647,171.91

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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.