Home / 378,947.64-522,929.37-215,588.76

Finding the Fourth Proportional to 378,947.64, 522,929.37 and 215,588.76

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Solution

The fourth proportional to 378,947.64, 522,929.37 and 215,588.76 is: 297,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,947.64 : 522,929.37 = 215,588.76 : x
  2. Step 2: Convert to fraction form
    378,947.64/522,929.37 = 215,588.76/x
  3. Step 3: Cross multiply
    378,947.64x = 522,929.37 × 215,588.76
  4. Step 4: Simplify right side
    378,947.64x = 112,737,696,234.83
  5. Step 5: Solve for x
    x = 112,737,696,234.83/378,947.64
  6. Step 6: Final answer
    x = 297,502.04

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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.