Home / 500,334.18-690,461.46-273,979.68

Finding the Fourth Proportional to 500,334.18, 690,461.46 and 273,979.68

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Solution

The fourth proportional to 500,334.18, 690,461.46 and 273,979.68 is: 378,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,334.18 : 690,461.46 = 273,979.68 : x
  2. Step 2: Convert to fraction form
    500,334.18/690,461.46 = 273,979.68/x
  3. Step 3: Cross multiply
    500,334.18x = 690,461.46 × 273,979.68
  4. Step 4: Simplify right side
    500,334.18x = 189,172,409,863.13
  5. Step 5: Solve for x
    x = 189,172,409,863.13/500,334.18
  6. Step 6: Final answer
    x = 378,092.12

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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.