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Finding the Fourth Proportional to 498,082.80, 746,249.40 and 408,853.20

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Solution

The fourth proportional to 498,082.80, 746,249.40 and 408,853.20 is: 612,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,082.80 : 746,249.40 = 408,853.20 : x
  2. Step 2: Convert to fraction form
    498,082.80/746,249.40 = 408,853.20/x
  3. Step 3: Cross multiply
    498,082.80x = 746,249.40 × 408,853.20
  4. Step 4: Simplify right side
    498,082.80x = 305,106,455,188.08
  5. Step 5: Solve for x
    x = 305,106,455,188.08/498,082.80
  6. Step 6: Final answer
    x = 612,561.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.