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Finding the Fourth Proportional to 555,727.94, 766,905.31 and 301,079.12

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Solution

The fourth proportional to 555,727.94, 766,905.31 and 301,079.12 is: 415,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,727.94 : 766,905.31 = 301,079.12 : x
  2. Step 2: Convert to fraction form
    555,727.94/766,905.31 = 301,079.12/x
  3. Step 3: Cross multiply
    555,727.94x = 766,905.31 × 301,079.12
  4. Step 4: Simplify right side
    555,727.94x = 230,899,177,022.69
  5. Step 5: Solve for x
    x = 230,899,177,022.69/555,727.94
  6. Step 6: Final answer
    x = 415,489.60

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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.