Home / 1,042,208.40-1,561,698.46-722,981.12

Finding the Fourth Proportional to 1,042,208.40, 1,561,698.46 and 722,981.12

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Solution

The fourth proportional to 1,042,208.40, 1,561,698.46 and 722,981.12 is: 1,083,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,208.40 : 1,561,698.46 = 722,981.12 : x
  2. Step 2: Convert to fraction form
    1,042,208.40/1,561,698.46 = 722,981.12/x
  3. Step 3: Cross multiply
    1,042,208.40x = 1,561,698.46 × 722,981.12
  4. Step 4: Simplify right side
    1,042,208.40x = 1,129,078,501,713.08
  5. Step 5: Solve for x
    x = 1,129,078,501,713.08/1,042,208.40
  6. Step 6: Final answer
    x = 1,083,351.95

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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.