Home / 557,821.38-769,762.26-303,170.88

Finding the Fourth Proportional to 557,821.38, 769,762.26 and 303,170.88

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Solution

The fourth proportional to 557,821.38, 769,762.26 and 303,170.88 is: 418,358.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,821.38 : 769,762.26 = 303,170.88 : x
  2. Step 2: Convert to fraction form
    557,821.38/769,762.26 = 303,170.88/x
  3. Step 3: Cross multiply
    557,821.38x = 769,762.26 × 303,170.88
  4. Step 4: Simplify right side
    557,821.38x = 233,369,501,754.99
  5. Step 5: Solve for x
    x = 233,369,501,754.99/557,821.38
  6. Step 6: Final answer
    x = 418,358.83

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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.