Home / 500,331.18-690,457.32-273,976.68

Finding the Fourth Proportional to 500,331.18, 690,457.32 and 273,976.68

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Solution

The fourth proportional to 500,331.18, 690,457.32 and 273,976.68 is: 378,087.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,331.18 : 690,457.32 = 273,976.68 : x
  2. Step 2: Convert to fraction form
    500,331.18/690,457.32 = 273,976.68/x
  3. Step 3: Cross multiply
    500,331.18x = 690,457.32 × 273,976.68
  4. Step 4: Simplify right side
    500,331.18x = 189,169,204,215.30
  5. Step 5: Solve for x
    x = 189,169,204,215.30/500,331.18
  6. Step 6: Final answer
    x = 378,087.98

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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.