Home / 1,292,083.49-1,783,043.75-711,301.90

Finding the Fourth Proportional to 1,292,083.49, 1,783,043.75 and 711,301.90

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Solution

The fourth proportional to 1,292,083.49, 1,783,043.75 and 711,301.90 is: 981,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,083.49 : 1,783,043.75 = 711,301.90 : x
  2. Step 2: Convert to fraction form
    1,292,083.49/1,783,043.75 = 711,301.90/x
  3. Step 3: Cross multiply
    1,292,083.49x = 1,783,043.75 × 711,301.90
  4. Step 4: Simplify right side
    1,292,083.49x = 1,268,282,407,821.98
  5. Step 5: Solve for x
    x = 1,268,282,407,821.98/1,292,083.49
  6. Step 6: Final answer
    x = 981,579.30

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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.