Home / 379,436.16-523,576.32-209,647.04

Finding the Fourth Proportional to 379,436.16, 523,576.32 and 209,647.04

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Solution

The fourth proportional to 379,436.16, 523,576.32 and 209,647.04 is: 289,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,436.16 : 523,576.32 = 209,647.04 : x
  2. Step 2: Convert to fraction form
    379,436.16/523,576.32 = 209,647.04/x
  3. Step 3: Cross multiply
    379,436.16x = 523,576.32 × 209,647.04
  4. Step 4: Simplify right side
    379,436.16x = 109,766,225,702.09
  5. Step 5: Solve for x
    x = 109,766,225,702.09/379,436.16
  6. Step 6: Final answer
    x = 289,287.73

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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.