Home / 1,287,407.05-1,772,570.89-1,093,398.28

Finding the Fourth Proportional to 1,287,407.05, 1,772,570.89 and 1,093,398.28

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Solution

The fourth proportional to 1,287,407.05, 1,772,570.89 and 1,093,398.28 is: 1,505,449.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,407.05 : 1,772,570.89 = 1,093,398.28 : x
  2. Step 2: Convert to fraction form
    1,287,407.05/1,772,570.89 = 1,093,398.28/x
  3. Step 3: Cross multiply
    1,287,407.05x = 1,772,570.89 × 1,093,398.28
  4. Step 4: Simplify right side
    1,287,407.05x = 1,938,125,959,239.39
  5. Step 5: Solve for x
    x = 1,938,125,959,239.39/1,287,407.05
  6. Step 6: Final answer
    x = 1,505,449.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.