Home / 454,129.37-679,975.85-253,879.44

Finding the Fourth Proportional to 454,129.37, 679,975.85 and 253,879.44

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Solution

The fourth proportional to 454,129.37, 679,975.85 and 253,879.44 is: 380,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,129.37 : 679,975.85 = 253,879.44 : x
  2. Step 2: Convert to fraction form
    454,129.37/679,975.85 = 253,879.44/x
  3. Step 3: Cross multiply
    454,129.37x = 679,975.85 × 253,879.44
  4. Step 4: Simplify right side
    454,129.37x = 172,631,886,742.13
  5. Step 5: Solve for x
    x = 172,631,886,742.13/454,129.37
  6. Step 6: Final answer
    x = 380,138.13

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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.