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Finding the Fourth Proportional to 508,907.40, 763,361.10 and 284,958.60

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Solution

The fourth proportional to 508,907.40, 763,361.10 and 284,958.60 is: 427,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,907.40 : 763,361.10 = 284,958.60 : x
  2. Step 2: Convert to fraction form
    508,907.40/763,361.10 = 284,958.60/x
  3. Step 3: Cross multiply
    508,907.40x = 763,361.10 × 284,958.60
  4. Step 4: Simplify right side
    508,907.40x = 217,526,310,350.46
  5. Step 5: Solve for x
    x = 217,526,310,350.46/508,907.40
  6. Step 6: Final answer
    x = 427,437.90

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Similar ratio
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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.