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Finding the Fourth Proportional to 829,897.80, 1,244,846.70 and 756,414.60

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Solution

The fourth proportional to 829,897.80, 1,244,846.70 and 756,414.60 is: 1,134,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,897.80 : 1,244,846.70 = 756,414.60 : x
  2. Step 2: Convert to fraction form
    829,897.80/1,244,846.70 = 756,414.60/x
  3. Step 3: Cross multiply
    829,897.80x = 1,244,846.70 × 756,414.60
  4. Step 4: Simplify right side
    829,897.80x = 941,620,218,641.82
  5. Step 5: Solve for x
    x = 941,620,218,641.82/829,897.80
  6. Step 6: Final answer
    x = 1,134,621.90

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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.