Home / 1,211,060.80-1,815,295.20-411,601.60

Finding the Fourth Proportional to 1,211,060.80, 1,815,295.20 and 411,601.60

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Solution

The fourth proportional to 1,211,060.80, 1,815,295.20 and 411,601.60 is: 616,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,060.80 : 1,815,295.20 = 411,601.60 : x
  2. Step 2: Convert to fraction form
    1,211,060.80/1,815,295.20 = 411,601.60/x
  3. Step 3: Cross multiply
    1,211,060.80x = 1,815,295.20 × 411,601.60
  4. Step 4: Simplify right side
    1,211,060.80x = 747,178,408,792.32
  5. Step 5: Solve for x
    x = 747,178,408,792.32/1,211,060.80
  6. Step 6: Final answer
    x = 616,961.93

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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.