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Finding the Fourth Proportional to 480,910, 720,896.20 and 200,507.44

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Solution

The fourth proportional to 480,910, 720,896.20 and 200,507.44 is: 300,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,910 : 720,896.20 = 200,507.44 : x
  2. Step 2: Convert to fraction form
    480,910/720,896.20 = 200,507.44/x
  3. Step 3: Cross multiply
    480,910x = 720,896.20 × 200,507.44
  4. Step 4: Simplify right side
    480,910x = 144,545,051,567.73
  5. Step 5: Solve for x
    x = 144,545,051,567.73/480,910
  6. Step 6: Final answer
    x = 300,565.70

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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.