Home / 495,945.50-683,771.27-321,207.03

Finding the Fourth Proportional to 495,945.50, 683,771.27 and 321,207.03

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Solution

The fourth proportional to 495,945.50, 683,771.27 and 321,207.03 is: 442,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,945.50 : 683,771.27 = 321,207.03 : x
  2. Step 2: Convert to fraction form
    495,945.50/683,771.27 = 321,207.03/x
  3. Step 3: Cross multiply
    495,945.50x = 683,771.27 × 321,207.03
  4. Step 4: Simplify right side
    495,945.50x = 219,632,137,229.99
  5. Step 5: Solve for x
    x = 219,632,137,229.99/495,945.50
  6. Step 6: Final answer
    x = 442,855.39

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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.