Home / 769,634.24-1,148,815.40-678,733.44

Finding the Fourth Proportional to 769,634.24, 1,148,815.40 and 678,733.44

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Solution

The fourth proportional to 769,634.24, 1,148,815.40 and 678,733.44 is: 1,013,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,634.24 : 1,148,815.40 = 678,733.44 : x
  2. Step 2: Convert to fraction form
    769,634.24/1,148,815.40 = 678,733.44/x
  3. Step 3: Cross multiply
    769,634.24x = 1,148,815.40 × 678,733.44
  4. Step 4: Simplify right side
    769,634.24x = 779,739,428,366.98
  5. Step 5: Solve for x
    x = 779,739,428,366.98/769,634.24
  6. Step 6: Final answer
    x = 1,013,129.86

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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.