Home / 1,220,434.48-1,684,990.11-785,046.52

Finding the Fourth Proportional to 1,220,434.48, 1,684,990.11 and 785,046.52

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Solution

The fourth proportional to 1,220,434.48, 1,684,990.11 and 785,046.52 is: 1,083,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,434.48 : 1,684,990.11 = 785,046.52 : x
  2. Step 2: Convert to fraction form
    1,220,434.48/1,684,990.11 = 785,046.52/x
  3. Step 3: Cross multiply
    1,220,434.48x = 1,684,990.11 × 785,046.52
  4. Step 4: Simplify right side
    1,220,434.48x = 1,322,795,622,089.92
  5. Step 5: Solve for x
    x = 1,322,795,622,089.92/1,220,434.48
  6. Step 6: Final answer
    x = 1,083,872.71

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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.