Home / 386,460.10-579,949.35-228,520.90

Finding the Fourth Proportional to 386,460.10, 579,949.35 and 228,520.90

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Solution

The fourth proportional to 386,460.10, 579,949.35 and 228,520.90 is: 342,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,460.10 : 579,949.35 = 228,520.90 : x
  2. Step 2: Convert to fraction form
    386,460.10/579,949.35 = 228,520.90/x
  3. Step 3: Cross multiply
    386,460.10x = 579,949.35 × 228,520.90
  4. Step 4: Simplify right side
    386,460.10x = 132,530,547,416.42
  5. Step 5: Solve for x
    x = 132,530,547,416.42/386,460.10
  6. Step 6: Final answer
    x = 342,934.62

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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.