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Finding the Fourth Proportional to 603,704.70, 905,557.05 and 323,768.70

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Solution

The fourth proportional to 603,704.70, 905,557.05 and 323,768.70 is: 485,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,704.70 : 905,557.05 = 323,768.70 : x
  2. Step 2: Convert to fraction form
    603,704.70/905,557.05 = 323,768.70/x
  3. Step 3: Cross multiply
    603,704.70x = 905,557.05 × 323,768.70
  4. Step 4: Simplify right side
    603,704.70x = 293,191,028,854.34
  5. Step 5: Solve for x
    x = 293,191,028,854.34/603,704.70
  6. Step 6: Final answer
    x = 485,653.05

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Similar ratio
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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.