Home / 1,121,296.51-1,681,936.12-279,842.59

Finding the Fourth Proportional to 1,121,296.51, 1,681,936.12 and 279,842.59

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Solution

The fourth proportional to 1,121,296.51, 1,681,936.12 and 279,842.59 is: 419,761.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,296.51 : 1,681,936.12 = 279,842.59 : x
  2. Step 2: Convert to fraction form
    1,121,296.51/1,681,936.12 = 279,842.59/x
  3. Step 3: Cross multiply
    1,121,296.51x = 1,681,936.12 × 279,842.59
  4. Step 4: Simplify right side
    1,121,296.51x = 470,677,360,035.35
  5. Step 5: Solve for x
    x = 470,677,360,035.35/1,121,296.51
  6. Step 6: Final answer
    x = 419,761.73

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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.