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Finding the Fourth Proportional to 479,944.80, 720,003.60 and 199,490.40

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Solution

The fourth proportional to 479,944.80, 720,003.60 and 199,490.40 is: 299,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,944.80 : 720,003.60 = 199,490.40 : x
  2. Step 2: Convert to fraction form
    479,944.80/720,003.60 = 199,490.40/x
  3. Step 3: Cross multiply
    479,944.80x = 720,003.60 × 199,490.40
  4. Step 4: Simplify right side
    479,944.80x = 143,633,806,165.44
  5. Step 5: Solve for x
    x = 143,633,806,165.44/479,944.80
  6. Step 6: Final answer
    x = 299,271.51

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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.