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Finding the Fourth Proportional to 517,759.24, 776,940.72 and 218,221.24

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Solution

The fourth proportional to 517,759.24, 776,940.72 and 218,221.24 is: 327,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,759.24 : 776,940.72 = 218,221.24 : x
  2. Step 2: Convert to fraction form
    517,759.24/776,940.72 = 218,221.24/x
  3. Step 3: Cross multiply
    517,759.24x = 776,940.72 × 218,221.24
  4. Step 4: Simplify right side
    517,759.24x = 169,544,967,324.89
  5. Step 5: Solve for x
    x = 169,544,967,324.89/517,759.24
  6. Step 6: Final answer
    x = 327,459.09

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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.