Home / 379,578.24-523,847.52-209,828.16

Finding the Fourth Proportional to 379,578.24, 523,847.52 and 209,828.16

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Solution

The fourth proportional to 379,578.24, 523,847.52 and 209,828.16 is: 289,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,578.24 : 523,847.52 = 209,828.16 : x
  2. Step 2: Convert to fraction form
    379,578.24/523,847.52 = 209,828.16/x
  3. Step 3: Cross multiply
    379,578.24x = 523,847.52 × 209,828.16
  4. Step 4: Simplify right side
    379,578.24x = 109,917,961,242.16
  5. Step 5: Solve for x
    x = 109,917,961,242.16/379,578.24
  6. Step 6: Final answer
    x = 289,579.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.