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Finding the Fourth Proportional to 722,311.80, 996,956.16 and 480,604.56

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Solution

The fourth proportional to 722,311.80, 996,956.16 and 480,604.56 is: 663,344.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,311.80 : 996,956.16 = 480,604.56 : x
  2. Step 2: Convert to fraction form
    722,311.80/996,956.16 = 480,604.56/x
  3. Step 3: Cross multiply
    722,311.80x = 996,956.16 × 480,604.56
  4. Step 4: Simplify right side
    722,311.80x = 479,141,676,616.09
  5. Step 5: Solve for x
    x = 479,141,676,616.09/722,311.80
  6. Step 6: Final answer
    x = 663,344.66

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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.