Home / 379,621.62-569,456.73-139,800.06

Finding the Fourth Proportional to 379,621.62, 569,456.73 and 139,800.06

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Solution

The fourth proportional to 379,621.62, 569,456.73 and 139,800.06 is: 209,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,621.62 : 569,456.73 = 139,800.06 : x
  2. Step 2: Convert to fraction form
    379,621.62/569,456.73 = 139,800.06/x
  3. Step 3: Cross multiply
    379,621.62x = 569,456.73 × 139,800.06
  4. Step 4: Simplify right side
    379,621.62x = 79,610,085,021.40
  5. Step 5: Solve for x
    x = 79,610,085,021.40/379,621.62
  6. Step 6: Final answer
    x = 209,709.04

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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.