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Finding the Fourth Proportional to 613,700.90, 920,123.52 and 271,958.23

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Solution

The fourth proportional to 613,700.90, 920,123.52 and 271,958.23 is: 407,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,700.90 : 920,123.52 = 271,958.23 : x
  2. Step 2: Convert to fraction form
    613,700.90/920,123.52 = 271,958.23/x
  3. Step 3: Cross multiply
    613,700.90x = 920,123.52 × 271,958.23
  4. Step 4: Simplify right side
    613,700.90x = 250,235,168,893.38
  5. Step 5: Solve for x
    x = 250,235,168,893.38/613,700.90
  6. Step 6: Final answer
    x = 407,747.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.