Home / 383,976.54-575,899.20-103,428.18

Finding the Fourth Proportional to 383,976.54, 575,899.20 and 103,428.18

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Solution

The fourth proportional to 383,976.54, 575,899.20 and 103,428.18 is: 155,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,976.54 : 575,899.20 = 103,428.18 : x
  2. Step 2: Convert to fraction form
    383,976.54/575,899.20 = 103,428.18/x
  3. Step 3: Cross multiply
    383,976.54x = 575,899.20 × 103,428.18
  4. Step 4: Simplify right side
    383,976.54x = 59,564,206,119.46
  5. Step 5: Solve for x
    x = 59,564,206,119.46/383,976.54
  6. Step 6: Final answer
    x = 155,124.60

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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.