Home / 379,255.24-523,345.62-209,476

Finding the Fourth Proportional to 379,255.24, 523,345.62 and 209,476

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Solution

The fourth proportional to 379,255.24, 523,345.62 and 209,476 is: 289,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,255.24 : 523,345.62 = 209,476 : x
  2. Step 2: Convert to fraction form
    379,255.24/523,345.62 = 209,476/x
  3. Step 3: Cross multiply
    379,255.24x = 523,345.62 × 209,476
  4. Step 4: Simplify right side
    379,255.24x = 109,628,347,095.12
  5. Step 5: Solve for x
    x = 109,628,347,095.12/379,255.24
  6. Step 6: Final answer
    x = 289,062.18

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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.