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Finding the Fourth Proportional to 493,999.56, 738,969.52 and 394,354.38

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Solution

The fourth proportional to 493,999.56, 738,969.52 and 394,354.38 is: 589,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,999.56 : 738,969.52 = 394,354.38 : x
  2. Step 2: Convert to fraction form
    493,999.56/738,969.52 = 394,354.38/x
  3. Step 3: Cross multiply
    493,999.56x = 738,969.52 × 394,354.38
  4. Step 4: Simplify right side
    493,999.56x = 291,415,866,898.50
  5. Step 5: Solve for x
    x = 291,415,866,898.50/493,999.56
  6. Step 6: Final answer
    x = 589,911.19

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1.5x scale

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.