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Finding the Fourth Proportional to 671,380.38, 926,516.75 and 365,465.57

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Solution

The fourth proportional to 671,380.38, 926,516.75 and 365,465.57 is: 504,348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,380.38 : 926,516.75 = 365,465.57 : x
  2. Step 2: Convert to fraction form
    671,380.38/926,516.75 = 365,465.57/x
  3. Step 3: Cross multiply
    671,380.38x = 926,516.75 × 365,465.57
  4. Step 4: Simplify right side
    671,380.38x = 338,609,965,693.39
  5. Step 5: Solve for x
    x = 338,609,965,693.39/671,380.38
  6. Step 6: Final answer
    x = 504,348.91

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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.