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Finding the Fourth Proportional to 516,832.92, 774,459.90 and 217,149.66

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Solution

The fourth proportional to 516,832.92, 774,459.90 and 217,149.66 is: 325,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,832.92 : 774,459.90 = 217,149.66 : x
  2. Step 2: Convert to fraction form
    516,832.92/774,459.90 = 217,149.66/x
  3. Step 3: Cross multiply
    516,832.92x = 774,459.90 × 217,149.66
  4. Step 4: Simplify right side
    516,832.92x = 168,173,703,968.63
  5. Step 5: Solve for x
    x = 168,173,703,968.63/516,832.92
  6. Step 6: Final answer
    x = 325,392.79

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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.