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Finding the Fourth Proportional to 719,592.25, 993,052.78 and 397,322.71

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Solution

The fourth proportional to 719,592.25, 993,052.78 and 397,322.71 is: 548,313.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,592.25 : 993,052.78 = 397,322.71 : x
  2. Step 2: Convert to fraction form
    719,592.25/993,052.78 = 397,322.71/x
  3. Step 3: Cross multiply
    719,592.25x = 993,052.78 × 397,322.71
  4. Step 4: Simplify right side
    719,592.25x = 394,562,421,722.63
  5. Step 5: Solve for x
    x = 394,562,421,722.63/719,592.25
  6. Step 6: Final answer
    x = 548,313.88

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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.