Home / 2,154,780.34-3,231,716.70-638,476.12

Finding the Fourth Proportional to 2,154,780.34, 3,231,716.70 and 638,476.12

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Solution

The fourth proportional to 2,154,780.34, 3,231,716.70 and 638,476.12 is: 957,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,780.34 : 3,231,716.70 = 638,476.12 : x
  2. Step 2: Convert to fraction form
    2,154,780.34/3,231,716.70 = 638,476.12/x
  3. Step 3: Cross multiply
    2,154,780.34x = 3,231,716.70 × 638,476.12
  4. Step 4: Simplify right side
    2,154,780.34x = 2,063,373,939,555.20
  5. Step 5: Solve for x
    x = 2,063,373,939,555.20/2,154,780.34
  6. Step 6: Final answer
    x = 957,579.71

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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.