Home / 500,275.86-690,388.29-273,942.42

Finding the Fourth Proportional to 500,275.86, 690,388.29 and 273,942.42

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Solution

The fourth proportional to 500,275.86, 690,388.29 and 273,942.42 is: 378,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,275.86 : 690,388.29 = 273,942.42 : x
  2. Step 2: Convert to fraction form
    500,275.86/690,388.29 = 273,942.42/x
  3. Step 3: Cross multiply
    500,275.86x = 690,388.29 × 273,942.42
  4. Step 4: Simplify right side
    500,275.86x = 189,126,638,902.26
  5. Step 5: Solve for x
    x = 189,126,638,902.26/500,275.86
  6. Step 6: Final answer
    x = 378,044.70

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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.