Home / 769,648.56-1,148,836.38-678,747.74

Finding the Fourth Proportional to 769,648.56, 1,148,836.38 and 678,747.74

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Solution

The fourth proportional to 769,648.56, 1,148,836.38 and 678,747.74 is: 1,013,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,648.56 : 1,148,836.38 = 678,747.74 : x
  2. Step 2: Convert to fraction form
    769,648.56/1,148,836.38 = 678,747.74/x
  3. Step 3: Cross multiply
    769,648.56x = 1,148,836.38 × 678,747.74
  4. Step 4: Simplify right side
    769,648.56x = 779,770,090,810.60
  5. Step 5: Solve for x
    x = 779,770,090,810.60/769,648.56
  6. Step 6: Final answer
    x = 1,013,150.85

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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.