Home / 1,227,356.65-1,692,879.66-819,252.73

Finding the Fourth Proportional to 1,227,356.65, 1,692,879.66 and 819,252.73

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Solution

The fourth proportional to 1,227,356.65, 1,692,879.66 and 819,252.73 is: 1,129,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,356.65 : 1,692,879.66 = 819,252.73 : x
  2. Step 2: Convert to fraction form
    1,227,356.65/1,692,879.66 = 819,252.73/x
  3. Step 3: Cross multiply
    1,227,356.65x = 1,692,879.66 × 819,252.73
  4. Step 4: Simplify right side
    1,227,356.65x = 1,386,896,283,016.47
  5. Step 5: Solve for x
    x = 1,386,896,283,016.47/1,227,356.65
  6. Step 6: Final answer
    x = 1,129,986.37

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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.