Home / 820,179.70-1,230,269.55-607,603.30

Finding the Fourth Proportional to 820,179.70, 1,230,269.55 and 607,603.30

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Solution

The fourth proportional to 820,179.70, 1,230,269.55 and 607,603.30 is: 911,404.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,179.70 : 1,230,269.55 = 607,603.30 : x
  2. Step 2: Convert to fraction form
    820,179.70/1,230,269.55 = 607,603.30/x
  3. Step 3: Cross multiply
    820,179.70x = 1,230,269.55 × 607,603.30
  4. Step 4: Simplify right side
    820,179.70x = 747,515,838,469.52
  5. Step 5: Solve for x
    x = 747,515,838,469.52/820,179.70
  6. Step 6: Final answer
    x = 911,404.95

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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.