Home / 1,257,788.25-1,886,977.62-416,340

Finding the Fourth Proportional to 1,257,788.25, 1,886,977.62 and 416,340

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Solution

The fourth proportional to 1,257,788.25, 1,886,977.62 and 416,340 is: 624,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,788.25 : 1,886,977.62 = 416,340 : x
  2. Step 2: Convert to fraction form
    1,257,788.25/1,886,977.62 = 416,340/x
  3. Step 3: Cross multiply
    1,257,788.25x = 1,886,977.62 × 416,340
  4. Step 4: Simplify right side
    1,257,788.25x = 785,624,262,310.80
  5. Step 5: Solve for x
    x = 785,624,262,310.80/1,257,788.25
  6. Step 6: Final answer
    x = 624,607.73

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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.