Home / 405,921.78-608,835.85-106,426.14

Finding the Fourth Proportional to 405,921.78, 608,835.85 and 106,426.14

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Solution

The fourth proportional to 405,921.78, 608,835.85 and 106,426.14 is: 159,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,921.78 : 608,835.85 = 106,426.14 : x
  2. Step 2: Convert to fraction form
    405,921.78/608,835.85 = 106,426.14/x
  3. Step 3: Cross multiply
    405,921.78x = 608,835.85 × 106,426.14
  4. Step 4: Simplify right side
    405,921.78x = 64,796,050,176.75
  5. Step 5: Solve for x
    x = 64,796,050,176.75/405,921.78
  6. Step 6: Final answer
    x = 159,626.94

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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.