Home / 493,669.20-738,631.80-327,781.20

Finding the Fourth Proportional to 493,669.20, 738,631.80 and 327,781.20

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Solution

The fourth proportional to 493,669.20, 738,631.80 and 327,781.20 is: 490,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,669.20 : 738,631.80 = 327,781.20 : x
  2. Step 2: Convert to fraction form
    493,669.20/738,631.80 = 327,781.20/x
  3. Step 3: Cross multiply
    493,669.20x = 738,631.80 × 327,781.20
  4. Step 4: Simplify right side
    493,669.20x = 242,109,617,762.16
  5. Step 5: Solve for x
    x = 242,109,617,762.16/493,669.20
  6. Step 6: Final answer
    x = 490,428.85

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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.