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Finding the Fourth Proportional to 480,906, 720,890.20 and 200,503.44

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Solution

The fourth proportional to 480,906, 720,890.20 and 200,503.44 is: 300,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,906 : 720,890.20 = 200,503.44 : x
  2. Step 2: Convert to fraction form
    480,906/720,890.20 = 200,503.44/x
  3. Step 3: Cross multiply
    480,906x = 720,890.20 × 200,503.44
  4. Step 4: Simplify right side
    480,906x = 144,540,964,962.29
  5. Step 5: Solve for x
    x = 144,540,964,962.29/480,906
  6. Step 6: Final answer
    x = 300,559.70

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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.