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Finding the Fourth Proportional to 500,073.92, 690,104.21 and 270,631.24

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Solution

The fourth proportional to 500,073.92, 690,104.21 and 270,631.24 is: 373,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,073.92 : 690,104.21 = 270,631.24 : x
  2. Step 2: Convert to fraction form
    500,073.92/690,104.21 = 270,631.24/x
  3. Step 3: Cross multiply
    500,073.92x = 690,104.21 × 270,631.24
  4. Step 4: Simplify right side
    500,073.92x = 186,763,758,081.52
  5. Step 5: Solve for x
    x = 186,763,758,081.52/500,073.92
  6. Step 6: Final answer
    x = 373,472.30

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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.