Home / 389,645.10-584,473.41-109,144.62

Finding the Fourth Proportional to 389,645.10, 584,473.41 and 109,144.62

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Solution

The fourth proportional to 389,645.10, 584,473.41 and 109,144.62 is: 163,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,645.10 : 584,473.41 = 109,144.62 : x
  2. Step 2: Convert to fraction form
    389,645.10/584,473.41 = 109,144.62/x
  3. Step 3: Cross multiply
    389,645.10x = 584,473.41 × 109,144.62
  4. Step 4: Simplify right side
    389,645.10x = 63,792,128,234.55
  5. Step 5: Solve for x
    x = 63,792,128,234.55/389,645.10
  6. Step 6: Final answer
    x = 163,718.54

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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.