Home / 378,799.24-522,772.50-217,710.52

Finding the Fourth Proportional to 378,799.24, 522,772.50 and 217,710.52

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Solution

The fourth proportional to 378,799.24, 522,772.50 and 217,710.52 is: 300,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,799.24 : 522,772.50 = 217,710.52 : x
  2. Step 2: Convert to fraction form
    378,799.24/522,772.50 = 217,710.52/x
  3. Step 3: Cross multiply
    378,799.24x = 522,772.50 × 217,710.52
  4. Step 4: Simplify right side
    378,799.24x = 113,813,072,816.70
  5. Step 5: Solve for x
    x = 113,813,072,816.70/378,799.24
  6. Step 6: Final answer
    x = 300,457.50

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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.