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Finding the Fourth Proportional to 603,981.97, 905,609.36 and 266,850.45

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Solution

The fourth proportional to 603,981.97, 905,609.36 and 266,850.45 is: 400,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,981.97 : 905,609.36 = 266,850.45 : x
  2. Step 2: Convert to fraction form
    603,981.97/905,609.36 = 266,850.45/x
  3. Step 3: Cross multiply
    603,981.97x = 905,609.36 × 266,850.45
  4. Step 4: Simplify right side
    603,981.97x = 241,662,265,907.34
  5. Step 5: Solve for x
    x = 241,662,265,907.34/603,981.97
  6. Step 6: Final answer
    x = 400,115.03

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Double scale
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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.