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Finding the Fourth Proportional to 629,318.72, 943,189.68 and 495,671

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Solution

The fourth proportional to 629,318.72, 943,189.68 and 495,671 is: 742,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,318.72 : 943,189.68 = 495,671 : x
  2. Step 2: Convert to fraction form
    629,318.72/943,189.68 = 495,671/x
  3. Step 3: Cross multiply
    629,318.72x = 943,189.68 × 495,671
  4. Step 4: Simplify right side
    629,318.72x = 467,511,771,875.28
  5. Step 5: Solve for x
    x = 467,511,771,875.28/629,318.72
  6. Step 6: Final answer
    x = 742,885.53

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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.