Home / 386,324.20-579,486.30-328,004.20

Finding the Fourth Proportional to 386,324.20, 579,486.30 and 328,004.20

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Solution

The fourth proportional to 386,324.20, 579,486.30 and 328,004.20 is: 492,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,324.20 : 579,486.30 = 328,004.20 : x
  2. Step 2: Convert to fraction form
    386,324.20/579,486.30 = 328,004.20/x
  3. Step 3: Cross multiply
    386,324.20x = 579,486.30 × 328,004.20
  4. Step 4: Simplify right side
    386,324.20x = 190,073,940,242.46
  5. Step 5: Solve for x
    x = 190,073,940,242.46/386,324.20
  6. Step 6: Final answer
    x = 492,006.30

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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.