Home / 383,976.68-575,899.38-103,428.32

Finding the Fourth Proportional to 383,976.68, 575,899.38 and 103,428.32

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Solution

The fourth proportional to 383,976.68, 575,899.38 and 103,428.32 is: 155,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,976.68 : 575,899.38 = 103,428.32 : x
  2. Step 2: Convert to fraction form
    383,976.68/575,899.38 = 103,428.32/x
  3. Step 3: Cross multiply
    383,976.68x = 575,899.38 × 103,428.32
  4. Step 4: Simplify right side
    383,976.68x = 59,564,305,362.44
  5. Step 5: Solve for x
    x = 59,564,305,362.44/383,976.68
  6. Step 6: Final answer
    x = 155,124.80

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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.