Home / 1,101,842.28-1,520,542.31-618,407.43

Finding the Fourth Proportional to 1,101,842.28, 1,520,542.31 and 618,407.43

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Solution

The fourth proportional to 1,101,842.28, 1,520,542.31 and 618,407.43 is: 853,402.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,842.28 : 1,520,542.31 = 618,407.43 : x
  2. Step 2: Convert to fraction form
    1,101,842.28/1,520,542.31 = 618,407.43/x
  3. Step 3: Cross multiply
    1,101,842.28x = 1,520,542.31 × 618,407.43
  4. Step 4: Simplify right side
    1,101,842.28x = 940,314,662,133.36
  5. Step 5: Solve for x
    x = 940,314,662,133.36/1,101,842.28
  6. Step 6: Final answer
    x = 853,402.23

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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.