Home / 500,834.92-690,934.98-331,305.64

Finding the Fourth Proportional to 500,834.92, 690,934.98 and 331,305.64

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Solution

The fourth proportional to 500,834.92, 690,934.98 and 331,305.64 is: 457,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,834.92 : 690,934.98 = 331,305.64 : x
  2. Step 2: Convert to fraction form
    500,834.92/690,934.98 = 331,305.64/x
  3. Step 3: Cross multiply
    500,834.92x = 690,934.98 × 331,305.64
  4. Step 4: Simplify right side
    500,834.92x = 228,910,655,747.29
  5. Step 5: Solve for x
    x = 228,910,655,747.29/500,834.92
  6. Step 6: Final answer
    x = 457,058.10

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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.