Home / 1,397,488.25-1,928,602.20-785,833.56

Finding the Fourth Proportional to 1,397,488.25, 1,928,602.20 and 785,833.56

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Solution

The fourth proportional to 1,397,488.25, 1,928,602.20 and 785,833.56 is: 1,084,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,488.25 : 1,928,602.20 = 785,833.56 : x
  2. Step 2: Convert to fraction form
    1,397,488.25/1,928,602.20 = 785,833.56/x
  3. Step 3: Cross multiply
    1,397,488.25x = 1,928,602.20 × 785,833.56
  4. Step 4: Simplify right side
    1,397,488.25x = 1,515,560,335,596.71
  5. Step 5: Solve for x
    x = 1,515,560,335,596.71/1,397,488.25
  6. Step 6: Final answer
    x = 1,084,488.78

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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.