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Finding the Fourth Proportional to 500,012.92, 690,034.31 and 273,658.42

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Solution

The fourth proportional to 500,012.92, 690,034.31 and 273,658.42 is: 377,657.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,012.92 : 690,034.31 = 273,658.42 : x
  2. Step 2: Convert to fraction form
    500,012.92/690,034.31 = 273,658.42/x
  3. Step 3: Cross multiply
    500,012.92x = 690,034.31 × 273,658.42
  4. Step 4: Simplify right side
    500,012.92x = 188,833,699,020.39
  5. Step 5: Solve for x
    x = 188,833,699,020.39/500,012.92
  6. Step 6: Final answer
    x = 377,657.64

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1.5x scale

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.