Home / 500,339.16-690,456.06-273,994.20

Finding the Fourth Proportional to 500,339.16, 690,456.06 and 273,994.20

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Solution

The fourth proportional to 500,339.16, 690,456.06 and 273,994.20 is: 378,105.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,339.16 : 690,456.06 = 273,994.20 : x
  2. Step 2: Convert to fraction form
    500,339.16/690,456.06 = 273,994.20/x
  3. Step 3: Cross multiply
    500,339.16x = 690,456.06 × 273,994.20
  4. Step 4: Simplify right side
    500,339.16x = 189,180,955,794.85
  5. Step 5: Solve for x
    x = 189,180,955,794.85/500,339.16
  6. Step 6: Final answer
    x = 378,105.44

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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.