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Finding the Fourth Proportional to 605,514.80, 908,681.80 and 339,274.80

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Solution

The fourth proportional to 605,514.80, 908,681.80 and 339,274.80 is: 509,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,514.80 : 908,681.80 = 339,274.80 : x
  2. Step 2: Convert to fraction form
    605,514.80/908,681.80 = 339,274.80/x
  3. Step 3: Cross multiply
    605,514.80x = 908,681.80 × 339,274.80
  4. Step 4: Simplify right side
    605,514.80x = 308,292,835,958.64
  5. Step 5: Solve for x
    x = 308,292,835,958.64/605,514.80
  6. Step 6: Final answer
    x = 509,141.70

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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.