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Finding the Fourth Proportional to 659,155.97, 909,659.73 and 372,658.97

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Solution

The fourth proportional to 659,155.97, 909,659.73 and 372,658.97 is: 514,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,155.97 : 909,659.73 = 372,658.97 : x
  2. Step 2: Convert to fraction form
    659,155.97/909,659.73 = 372,658.97/x
  3. Step 3: Cross multiply
    659,155.97x = 909,659.73 × 372,658.97
  4. Step 4: Simplify right side
    659,155.97x = 338,992,851,620.69
  5. Step 5: Solve for x
    x = 338,992,851,620.69/659,155.97
  6. Step 6: Final answer
    x = 514,283.22

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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.