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Finding the Fourth Proportional to 492,593.89, 679,779.21 and 266,239.39

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Solution

The fourth proportional to 492,593.89, 679,779.21 and 266,239.39 is: 367,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,593.89 : 679,779.21 = 266,239.39 : x
  2. Step 2: Convert to fraction form
    492,593.89/679,779.21 = 266,239.39/x
  3. Step 3: Cross multiply
    492,593.89x = 679,779.21 × 266,239.39
  4. Step 4: Simplify right side
    492,593.89x = 180,984,000,505.63
  5. Step 5: Solve for x
    x = 180,984,000,505.63/492,593.89
  6. Step 6: Final answer
    x = 367,410.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.