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Finding the Fourth Proportional to 797,115.12, 1,191,007.07 and 769,209

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Solution

The fourth proportional to 797,115.12, 1,191,007.07 and 769,209 is: 1,149,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,115.12 : 1,191,007.07 = 769,209 : x
  2. Step 2: Convert to fraction form
    797,115.12/1,191,007.07 = 769,209/x
  3. Step 3: Cross multiply
    797,115.12x = 1,191,007.07 × 769,209
  4. Step 4: Simplify right side
    797,115.12x = 916,133,357,307.63
  5. Step 5: Solve for x
    x = 916,133,357,307.63/797,115.12
  6. Step 6: Final answer
    x = 1,149,311.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.