Home / 386,514.10-579,501.15-228,661.30

Finding the Fourth Proportional to 386,514.10, 579,501.15 and 228,661.30

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Solution

The fourth proportional to 386,514.10, 579,501.15 and 228,661.30 is: 342,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,514.10 : 579,501.15 = 228,661.30 : x
  2. Step 2: Convert to fraction form
    386,514.10/579,501.15 = 228,661.30/x
  3. Step 3: Cross multiply
    386,514.10x = 579,501.15 × 228,661.30
  4. Step 4: Simplify right side
    386,514.10x = 132,509,486,310.50
  5. Step 5: Solve for x
    x = 132,509,486,310.50/386,514.10
  6. Step 6: Final answer
    x = 342,832.22

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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.