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Finding the Fourth Proportional to 631,900.92, 872,044.46 and 345,414.84

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Solution

The fourth proportional to 631,900.92, 872,044.46 and 345,414.84 is: 476,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,900.92 : 872,044.46 = 345,414.84 : x
  2. Step 2: Convert to fraction form
    631,900.92/872,044.46 = 345,414.84/x
  3. Step 3: Cross multiply
    631,900.92x = 872,044.46 × 345,414.84
  4. Step 4: Simplify right side
    631,900.92x = 301,217,097,623.79
  5. Step 5: Solve for x
    x = 301,217,097,623.79/631,900.92
  6. Step 6: Final answer
    x = 476,684.06

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1.5x scale

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.