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Finding the Fourth Proportional to 378,874.56, 522,613.39 and 270,014.14

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Solution

The fourth proportional to 378,874.56, 522,613.39 and 270,014.14 is: 372,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,874.56 : 522,613.39 = 270,014.14 : x
  2. Step 2: Convert to fraction form
    378,874.56/522,613.39 = 270,014.14/x
  3. Step 3: Cross multiply
    378,874.56x = 522,613.39 × 270,014.14
  4. Step 4: Simplify right side
    378,874.56x = 141,113,005,053.34
  5. Step 5: Solve for x
    x = 141,113,005,053.34/378,874.56
  6. Step 6: Final answer
    x = 372,453.10

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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.