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Finding the Fourth Proportional to 719,351.88, 992,700.12 and 397,061.94

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Solution

The fourth proportional to 719,351.88, 992,700.12 and 397,061.94 is: 547,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,351.88 : 992,700.12 = 397,061.94 : x
  2. Step 2: Convert to fraction form
    719,351.88/992,700.12 = 397,061.94/x
  3. Step 3: Cross multiply
    719,351.88x = 992,700.12 × 397,061.94
  4. Step 4: Simplify right side
    719,351.88x = 394,163,435,485.43
  5. Step 5: Solve for x
    x = 394,163,435,485.43/719,351.88
  6. Step 6: Final answer
    x = 547,942.46

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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.