Home / 1,418,846.78-2,129,110.57-1,329,077.72

Finding the Fourth Proportional to 1,418,846.78, 2,129,110.57 and 1,329,077.72

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Solution

The fourth proportional to 1,418,846.78, 2,129,110.57 and 1,329,077.72 is: 1,994,403.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,846.78 : 2,129,110.57 = 1,329,077.72 : x
  2. Step 2: Convert to fraction form
    1,418,846.78/2,129,110.57 = 1,329,077.72/x
  3. Step 3: Cross multiply
    1,418,846.78x = 2,129,110.57 × 1,329,077.72
  4. Step 4: Simplify right side
    1,418,846.78x = 2,829,753,409,535.31
  5. Step 5: Solve for x
    x = 2,829,753,409,535.31/1,418,846.78
  6. Step 6: Final answer
    x = 1,994,403.80

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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.