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Finding the Fourth Proportional to 476,660.70, 657,796.05 and 261,805.59

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Solution

The fourth proportional to 476,660.70, 657,796.05 and 261,805.59 is: 361,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,660.70 : 657,796.05 = 261,805.59 : x
  2. Step 2: Convert to fraction form
    476,660.70/657,796.05 = 261,805.59/x
  3. Step 3: Cross multiply
    476,660.70x = 657,796.05 × 261,805.59
  4. Step 4: Simplify right side
    476,660.70x = 172,214,682,969.92
  5. Step 5: Solve for x
    x = 172,214,682,969.92/476,660.70
  6. Step 6: Final answer
    x = 361,294.07

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1.5x scale

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.