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Finding the Fourth Proportional to 661,614.44, 992,480.86 and 256,797.17

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Solution

The fourth proportional to 661,614.44, 992,480.86 and 256,797.17 is: 385,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,614.44 : 992,480.86 = 256,797.17 : x
  2. Step 2: Convert to fraction form
    661,614.44/992,480.86 = 256,797.17/x
  3. Step 3: Cross multiply
    661,614.44x = 992,480.86 × 256,797.17
  4. Step 4: Simplify right side
    661,614.44x = 254,866,271,164.76
  5. Step 5: Solve for x
    x = 254,866,271,164.76/661,614.44
  6. Step 6: Final answer
    x = 385,218.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.