Home / 379,647.24-523,886.88-209,868

Finding the Fourth Proportional to 379,647.24, 523,886.88 and 209,868

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Solution

The fourth proportional to 379,647.24, 523,886.88 and 209,868 is: 289,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,647.24 : 523,886.88 = 209,868 : x
  2. Step 2: Convert to fraction form
    379,647.24/523,886.88 = 209,868/x
  3. Step 3: Cross multiply
    379,647.24x = 523,886.88 × 209,868
  4. Step 4: Simplify right side
    379,647.24x = 109,947,091,731.84
  5. Step 5: Solve for x
    x = 109,947,091,731.84/379,647.24
  6. Step 6: Final answer
    x = 289,603.30

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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.