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Finding the Fourth Proportional to 829,141.80, 1,244,019.90 and 798,421.80

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Solution

The fourth proportional to 829,141.80, 1,244,019.90 and 798,421.80 is: 1,197,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,141.80 : 1,244,019.90 = 798,421.80 : x
  2. Step 2: Convert to fraction form
    829,141.80/1,244,019.90 = 798,421.80/x
  3. Step 3: Cross multiply
    829,141.80x = 1,244,019.90 × 798,421.80
  4. Step 4: Simplify right side
    829,141.80x = 993,252,607,793.82
  5. Step 5: Solve for x
    x = 993,252,607,793.82/829,141.80
  6. Step 6: Final answer
    x = 1,197,928.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.