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Finding the Fourth Proportional to 495,504.70, 683,892.39 and 323,123.39

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Solution

The fourth proportional to 495,504.70, 683,892.39 and 323,123.39 is: 445,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,504.70 : 683,892.39 = 323,123.39 : x
  2. Step 2: Convert to fraction form
    495,504.70/683,892.39 = 323,123.39/x
  3. Step 3: Cross multiply
    495,504.70x = 683,892.39 × 323,123.39
  4. Step 4: Simplify right side
    495,504.70x = 220,981,629,938.34
  5. Step 5: Solve for x
    x = 220,981,629,938.34/495,504.70
  6. Step 6: Final answer
    x = 445,972.82

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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.