Home / 638,128.86-957,565.38-239,049.96

Finding the Fourth Proportional to 638,128.86, 957,565.38 and 239,049.96

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Solution

The fourth proportional to 638,128.86, 957,565.38 and 239,049.96 is: 358,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,128.86 : 957,565.38 = 239,049.96 : x
  2. Step 2: Convert to fraction form
    638,128.86/957,565.38 = 239,049.96/x
  3. Step 3: Cross multiply
    638,128.86x = 957,565.38 × 239,049.96
  4. Step 4: Simplify right side
    638,128.86x = 228,905,965,786.39
  5. Step 5: Solve for x
    x = 228,905,965,786.39/638,128.86
  6. Step 6: Final answer
    x = 358,714.33

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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.