Home / 1,280,834.35-1,921,218.45-416,264.44

Finding the Fourth Proportional to 1,280,834.35, 1,921,218.45 and 416,264.44

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Solution

The fourth proportional to 1,280,834.35, 1,921,218.45 and 416,264.44 is: 624,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,834.35 : 1,921,218.45 = 416,264.44 : x
  2. Step 2: Convert to fraction form
    1,280,834.35/1,921,218.45 = 416,264.44/x
  3. Step 3: Cross multiply
    1,280,834.35x = 1,921,218.45 × 416,264.44
  4. Step 4: Simplify right side
    1,280,834.35x = 799,734,919,445.17
  5. Step 5: Solve for x
    x = 799,734,919,445.17/1,280,834.35
  6. Step 6: Final answer
    x = 624,385.91

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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.