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Finding the Fourth Proportional to 605,508.80, 908,672.80 and 339,268.80

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Solution

The fourth proportional to 605,508.80, 908,672.80 and 339,268.80 is: 509,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,508.80 : 908,672.80 = 339,268.80 : x
  2. Step 2: Convert to fraction form
    605,508.80/908,672.80 = 339,268.80/x
  3. Step 3: Cross multiply
    605,508.80x = 908,672.80 × 339,268.80
  4. Step 4: Simplify right side
    605,508.80x = 308,284,330,448.64
  5. Step 5: Solve for x
    x = 308,284,330,448.64/605,508.80
  6. Step 6: Final answer
    x = 509,132.70

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1.5x scale

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.