Home / 1,920,344-2,650,074.72-1,115,579.84

Finding the Fourth Proportional to 1,920,344, 2,650,074.72 and 1,115,579.84

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Solution

The fourth proportional to 1,920,344, 2,650,074.72 and 1,115,579.84 is: 1,539,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,344 : 2,650,074.72 = 1,115,579.84 : x
  2. Step 2: Convert to fraction form
    1,920,344/2,650,074.72 = 1,115,579.84/x
  3. Step 3: Cross multiply
    1,920,344x = 2,650,074.72 × 1,115,579.84
  4. Step 4: Simplify right side
    1,920,344x = 2,956,369,932,125.65
  5. Step 5: Solve for x
    x = 2,956,369,932,125.65/1,920,344
  6. Step 6: Final answer
    x = 1,539,500.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.