Home / 753,005.96-1,129,662.54-254,358.92

Finding the Fourth Proportional to 753,005.96, 1,129,662.54 and 254,358.92

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Solution

The fourth proportional to 753,005.96, 1,129,662.54 and 254,358.92 is: 381,590.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,005.96 : 1,129,662.54 = 254,358.92 : x
  2. Step 2: Convert to fraction form
    753,005.96/1,129,662.54 = 254,358.92/x
  3. Step 3: Cross multiply
    753,005.96x = 1,129,662.54 × 254,358.92
  4. Step 4: Simplify right side
    753,005.96x = 287,339,743,638.86
  5. Step 5: Solve for x
    x = 287,339,743,638.86/753,005.96
  6. Step 6: Final answer
    x = 381,590.26

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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.