Home / 1,321,388.52-1,823,643.78-740,709.96

Finding the Fourth Proportional to 1,321,388.52, 1,823,643.78 and 740,709.96

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Solution

The fourth proportional to 1,321,388.52, 1,823,643.78 and 740,709.96 is: 1,022,251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,388.52 : 1,823,643.78 = 740,709.96 : x
  2. Step 2: Convert to fraction form
    1,321,388.52/1,823,643.78 = 740,709.96/x
  3. Step 3: Cross multiply
    1,321,388.52x = 1,823,643.78 × 740,709.96
  4. Step 4: Simplify right side
    1,321,388.52x = 1,350,791,111,338.05
  5. Step 5: Solve for x
    x = 1,350,791,111,338.05/1,321,388.52
  6. Step 6: Final answer
    x = 1,022,251.28

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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.