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Finding the Fourth Proportional to 616,451.56, 850,462.86 and 386,874.88

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Solution

The fourth proportional to 616,451.56, 850,462.86 and 386,874.88 is: 533,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,451.56 : 850,462.86 = 386,874.88 : x
  2. Step 2: Convert to fraction form
    616,451.56/850,462.86 = 386,874.88/x
  3. Step 3: Cross multiply
    616,451.56x = 850,462.86 × 386,874.88
  4. Step 4: Simplify right side
    616,451.56x = 329,022,716,906.96
  5. Step 5: Solve for x
    x = 329,022,716,906.96/616,451.56
  6. Step 6: Final answer
    x = 533,736.53

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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.