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Finding the Fourth Proportional to 719,553.80, 992,964.48 and 397,258.04

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Solution

The fourth proportional to 719,553.80, 992,964.48 and 397,258.04 is: 548,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,553.80 : 992,964.48 = 397,258.04 : x
  2. Step 2: Convert to fraction form
    719,553.80/992,964.48 = 397,258.04/x
  3. Step 3: Cross multiply
    719,553.80x = 992,964.48 × 397,258.04
  4. Step 4: Simplify right side
    719,553.80x = 394,463,123,114.42
  5. Step 5: Solve for x
    x = 394,463,123,114.42/719,553.80
  6. Step 6: Final answer
    x = 548,205.18

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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.