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Finding the Fourth Proportional to 481,885.80, 722,828.70 and 303,815.40

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Solution

The fourth proportional to 481,885.80, 722,828.70 and 303,815.40 is: 455,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,885.80 : 722,828.70 = 303,815.40 : x
  2. Step 2: Convert to fraction form
    481,885.80/722,828.70 = 303,815.40/x
  3. Step 3: Cross multiply
    481,885.80x = 722,828.70 × 303,815.40
  4. Step 4: Simplify right side
    481,885.80x = 219,606,490,621.98
  5. Step 5: Solve for x
    x = 219,606,490,621.98/481,885.80
  6. Step 6: Final answer
    x = 455,723.10

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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.