Home / 1,280,835.35-1,921,219.95-416,265.44

Finding the Fourth Proportional to 1,280,835.35, 1,921,219.95 and 416,265.44

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Solution

The fourth proportional to 1,280,835.35, 1,921,219.95 and 416,265.44 is: 624,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,835.35 : 1,921,219.95 = 416,265.44 : x
  2. Step 2: Convert to fraction form
    1,280,835.35/1,921,219.95 = 416,265.44/x
  3. Step 3: Cross multiply
    1,280,835.35x = 1,921,219.95 × 416,265.44
  4. Step 4: Simplify right side
    1,280,835.35x = 799,737,467,823.53
  5. Step 5: Solve for x
    x = 799,737,467,823.53/1,280,835.35
  6. Step 6: Final answer
    x = 624,387.41

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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.