Home / 1,396,407.44-1,927,101.81-784,561.39

Finding the Fourth Proportional to 1,396,407.44, 1,927,101.81 and 784,561.39

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Solution

The fourth proportional to 1,396,407.44, 1,927,101.81 and 784,561.39 is: 1,082,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,407.44 : 1,927,101.81 = 784,561.39 : x
  2. Step 2: Convert to fraction form
    1,396,407.44/1,927,101.81 = 784,561.39/x
  3. Step 3: Cross multiply
    1,396,407.44x = 1,927,101.81 × 784,561.39
  4. Step 4: Simplify right side
    1,396,407.44x = 1,511,929,661,166.80
  5. Step 5: Solve for x
    x = 1,511,929,661,166.80/1,396,407.44
  6. Step 6: Final answer
    x = 1,082,728.16

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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.