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Finding the Fourth Proportional to 518,301.30, 777,797.55 and 293,661.30

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Solution

The fourth proportional to 518,301.30, 777,797.55 and 293,661.30 is: 440,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,301.30 : 777,797.55 = 293,661.30 : x
  2. Step 2: Convert to fraction form
    518,301.30/777,797.55 = 293,661.30/x
  3. Step 3: Cross multiply
    518,301.30x = 777,797.55 × 293,661.30
  4. Step 4: Simplify right side
    518,301.30x = 228,409,039,669.82
  5. Step 5: Solve for x
    x = 228,409,039,669.82/518,301.30
  6. Step 6: Final answer
    x = 440,687.76

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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.