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Finding the Fourth Proportional to 379,412.64, 522,674.37 and 324,791.10

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Solution

The fourth proportional to 379,412.64, 522,674.37 and 324,791.10 is: 447,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,412.64 : 522,674.37 = 324,791.10 : x
  2. Step 2: Convert to fraction form
    379,412.64/522,674.37 = 324,791.10/x
  3. Step 3: Cross multiply
    379,412.64x = 522,674.37 × 324,791.10
  4. Step 4: Simplify right side
    379,412.64x = 169,759,983,574.11
  5. Step 5: Solve for x
    x = 169,759,983,574.11/379,412.64
  6. Step 6: Final answer
    x = 447,428.38

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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.