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Finding the Fourth Proportional to 520,797.01, 718,693.41 and 305,956.66

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Solution

The fourth proportional to 520,797.01, 718,693.41 and 305,956.66 is: 422,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,797.01 : 718,693.41 = 305,956.66 : x
  2. Step 2: Convert to fraction form
    520,797.01/718,693.41 = 305,956.66/x
  3. Step 3: Cross multiply
    520,797.01x = 718,693.41 × 305,956.66
  4. Step 4: Simplify right side
    520,797.01x = 219,889,035,287.61
  5. Step 5: Solve for x
    x = 219,889,035,287.61/520,797.01
  6. Step 6: Final answer
    x = 422,216.39

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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.