Home / 2,479,156.74-3,421,236.24-1,391,428.32

Finding the Fourth Proportional to 2,479,156.74, 3,421,236.24 and 1,391,428.32

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Solution

The fourth proportional to 2,479,156.74, 3,421,236.24 and 1,391,428.32 is: 1,920,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479,156.74 : 3,421,236.24 = 1,391,428.32 : x
  2. Step 2: Convert to fraction form
    2,479,156.74/3,421,236.24 = 1,391,428.32/x
  3. Step 3: Cross multiply
    2,479,156.74x = 3,421,236.24 × 1,391,428.32
  4. Step 4: Simplify right side
    2,479,156.74x = 4,760,404,993,746.32
  5. Step 5: Solve for x
    x = 4,760,404,993,746.32/2,479,156.74
  6. Step 6: Final answer
    x = 1,920,171.05

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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.