Home / 476,628.05-657,778.91-261,770.36

Finding the Fourth Proportional to 476,628.05, 657,778.91 and 261,770.36

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Solution

The fourth proportional to 476,628.05, 657,778.91 and 261,770.36 is: 361,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,628.05 : 657,778.91 = 261,770.36 : x
  2. Step 2: Convert to fraction form
    476,628.05/657,778.91 = 261,770.36/x
  3. Step 3: Cross multiply
    476,628.05x = 657,778.91 × 261,770.36
  4. Step 4: Simplify right side
    476,628.05x = 172,187,017,473.36
  5. Step 5: Solve for x
    x = 172,187,017,473.36/476,628.05
  6. Step 6: Final answer
    x = 361,260.78

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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.