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Finding the Fourth Proportional to 474,069.77, 654,394.17 and 310,736.79

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Solution

The fourth proportional to 474,069.77, 654,394.17 and 310,736.79 is: 428,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,069.77 : 654,394.17 = 310,736.79 : x
  2. Step 2: Convert to fraction form
    474,069.77/654,394.17 = 310,736.79/x
  3. Step 3: Cross multiply
    474,069.77x = 654,394.17 × 310,736.79
  4. Step 4: Simplify right side
    474,069.77x = 203,344,344,945.78
  5. Step 5: Solve for x
    x = 203,344,344,945.78/474,069.77
  6. Step 6: Final answer
    x = 428,933.37

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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.