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Finding the Fourth Proportional to 492,599.81, 679,788.89 and 266,245.31

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Solution

The fourth proportional to 492,599.81, 679,788.89 and 266,245.31 is: 367,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,599.81 : 679,788.89 = 266,245.31 : x
  2. Step 2: Convert to fraction form
    492,599.81/679,788.89 = 266,245.31/x
  3. Step 3: Cross multiply
    492,599.81x = 679,788.89 × 266,245.31
  4. Step 4: Simplify right side
    492,599.81x = 180,990,601,019.28
  5. Step 5: Solve for x
    x = 180,990,601,019.28/492,599.81
  6. Step 6: Final answer
    x = 367,419.15

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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.