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Finding the Fourth Proportional to 492,654.99, 679,863.38 and 266,300.49

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Solution

The fourth proportional to 492,654.99, 679,863.38 and 266,300.49 is: 367,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,654.99 : 679,863.38 = 266,300.49 : x
  2. Step 2: Convert to fraction form
    492,654.99/679,863.38 = 266,300.49/x
  3. Step 3: Cross multiply
    492,654.99x = 679,863.38 × 266,300.49
  4. Step 4: Simplify right side
    492,654.99x = 181,047,949,895.55
  5. Step 5: Solve for x
    x = 181,047,949,895.55/492,654.99
  6. Step 6: Final answer
    x = 367,494.40

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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.