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Finding the Fourth Proportional to 500,041.88, 690,057.80 and 273,687.38

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Solution

The fourth proportional to 500,041.88, 690,057.80 and 273,687.38 is: 377,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,041.88 : 690,057.80 = 273,687.38 : x
  2. Step 2: Convert to fraction form
    500,041.88/690,057.80 = 273,687.38/x
  3. Step 3: Cross multiply
    500,041.88x = 690,057.80 × 273,687.38
  4. Step 4: Simplify right side
    500,041.88x = 188,860,111,330.56
  5. Step 5: Solve for x
    x = 188,860,111,330.56/500,041.88
  6. Step 6: Final answer
    x = 377,688.59

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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.