Home / 3,119,374.36-4,302,940.98-1,878,121.72

Finding the Fourth Proportional to 3,119,374.36, 4,302,940.98 and 1,878,121.72

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Solution

The fourth proportional to 3,119,374.36, 4,302,940.98 and 1,878,121.72 is: 2,590,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,374.36 : 4,302,940.98 = 1,878,121.72 : x
  2. Step 2: Convert to fraction form
    3,119,374.36/4,302,940.98 = 1,878,121.72/x
  3. Step 3: Cross multiply
    3,119,374.36x = 4,302,940.98 × 1,878,121.72
  4. Step 4: Simplify right side
    3,119,374.36x = 8,081,446,914,416.09
  5. Step 5: Solve for x
    x = 8,081,446,914,416.09/3,119,374.36
  6. Step 6: Final answer
    x = 2,590,726.85

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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.