Home / 1,260,405.10-1,890,607.65-418,956.85

Finding the Fourth Proportional to 1,260,405.10, 1,890,607.65 and 418,956.85

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Solution

The fourth proportional to 1,260,405.10, 1,890,607.65 and 418,956.85 is: 628,435.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,405.10 : 1,890,607.65 = 418,956.85 : x
  2. Step 2: Convert to fraction form
    1,260,405.10/1,890,607.65 = 418,956.85/x
  3. Step 3: Cross multiply
    1,260,405.10x = 1,890,607.65 × 418,956.85
  4. Step 4: Simplify right side
    1,260,405.10x = 792,083,025,629.90
  5. Step 5: Solve for x
    x = 792,083,025,629.90/1,260,405.10
  6. Step 6: Final answer
    x = 628,435.28

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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.