Home / 1,403,049.87-1,936,735.35-919,646.16

Finding the Fourth Proportional to 1,403,049.87, 1,936,735.35 and 919,646.16

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Solution

The fourth proportional to 1,403,049.87, 1,936,735.35 and 919,646.16 is: 1,269,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,049.87 : 1,936,735.35 = 919,646.16 : x
  2. Step 2: Convert to fraction form
    1,403,049.87/1,936,735.35 = 919,646.16/x
  3. Step 3: Cross multiply
    1,403,049.87x = 1,936,735.35 × 919,646.16
  4. Step 4: Simplify right side
    1,403,049.87x = 1,781,111,216,852.33
  5. Step 5: Solve for x
    x = 1,781,111,216,852.33/1,403,049.87
  6. Step 6: Final answer
    x = 1,269,456.81

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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.