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Finding the Fourth Proportional to 516,365.96, 772,891.32 and 275,878.88

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Solution

The fourth proportional to 516,365.96, 772,891.32 and 275,878.88 is: 412,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,365.96 : 772,891.32 = 275,878.88 : x
  2. Step 2: Convert to fraction form
    516,365.96/772,891.32 = 275,878.88/x
  3. Step 3: Cross multiply
    516,365.96x = 772,891.32 × 275,878.88
  4. Step 4: Simplify right side
    516,365.96x = 213,224,391,723.32
  5. Step 5: Solve for x
    x = 213,224,391,723.32/516,365.96
  6. Step 6: Final answer
    x = 412,932.70

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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.