Home / 1,387,100.73-2,080,651.08-389,828.73

Finding the Fourth Proportional to 1,387,100.73, 2,080,651.08 and 389,828.73

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Solution

The fourth proportional to 1,387,100.73, 2,080,651.08 and 389,828.73 is: 584,743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,100.73 : 2,080,651.08 = 389,828.73 : x
  2. Step 2: Convert to fraction form
    1,387,100.73/2,080,651.08 = 389,828.73/x
  3. Step 3: Cross multiply
    1,387,100.73x = 2,080,651.08 × 389,828.73
  4. Step 4: Simplify right side
    1,387,100.73x = 811,097,568,089.53
  5. Step 5: Solve for x
    x = 811,097,568,089.53/1,387,100.73
  6. Step 6: Final answer
    x = 584,743.09

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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.