Home / 1,284,400.60-1,926,605.46-431,447.92

Finding the Fourth Proportional to 1,284,400.60, 1,926,605.46 and 431,447.92

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Solution

The fourth proportional to 1,284,400.60, 1,926,605.46 and 431,447.92 is: 647,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,400.60 : 1,926,605.46 = 431,447.92 : x
  2. Step 2: Convert to fraction form
    1,284,400.60/1,926,605.46 = 431,447.92/x
  3. Step 3: Cross multiply
    1,284,400.60x = 1,926,605.46 × 431,447.92
  4. Step 4: Simplify right side
    1,284,400.60x = 831,229,918,377.64
  5. Step 5: Solve for x
    x = 831,229,918,377.64/1,284,400.60
  6. Step 6: Final answer
    x = 647,173.41

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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.