Home / 1,121,295.51-1,681,934.63-279,841.59

Finding the Fourth Proportional to 1,121,295.51, 1,681,934.63 and 279,841.59

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Solution

The fourth proportional to 1,121,295.51, 1,681,934.63 and 279,841.59 is: 419,760.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,295.51 : 1,681,934.63 = 279,841.59 : x
  2. Step 2: Convert to fraction form
    1,121,295.51/1,681,934.63 = 279,841.59/x
  3. Step 3: Cross multiply
    1,121,295.51x = 1,681,934.63 × 279,841.59
  4. Step 4: Simplify right side
    1,121,295.51x = 470,675,259,736.05
  5. Step 5: Solve for x
    x = 470,675,259,736.05/1,121,295.51
  6. Step 6: Final answer
    x = 419,760.23

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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.