Home / 1,231,039.60-1,846,732.20-389,503.60

Finding the Fourth Proportional to 1,231,039.60, 1,846,732.20 and 389,503.60

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Solution

The fourth proportional to 1,231,039.60, 1,846,732.20 and 389,503.60 is: 584,310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,039.60 : 1,846,732.20 = 389,503.60 : x
  2. Step 2: Convert to fraction form
    1,231,039.60/1,846,732.20 = 389,503.60/x
  3. Step 3: Cross multiply
    1,231,039.60x = 1,846,732.20 × 389,503.60
  4. Step 4: Simplify right side
    1,231,039.60x = 719,308,840,135.92
  5. Step 5: Solve for x
    x = 719,308,840,135.92/1,231,039.60
  6. Step 6: Final answer
    x = 584,310.07

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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.