Home / 1,278,370.91-1,917,481.10-479,585.49

Finding the Fourth Proportional to 1,278,370.91, 1,917,481.10 and 479,585.49

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Solution

The fourth proportional to 1,278,370.91, 1,917,481.10 and 479,585.49 is: 719,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,370.91 : 1,917,481.10 = 479,585.49 : x
  2. Step 2: Convert to fraction form
    1,278,370.91/1,917,481.10 = 479,585.49/x
  3. Step 3: Cross multiply
    1,278,370.91x = 1,917,481.10 × 479,585.49
  4. Step 4: Simplify right side
    1,278,370.91x = 919,596,110,511.31
  5. Step 5: Solve for x
    x = 919,596,110,511.31/1,278,370.91
  6. Step 6: Final answer
    x = 719,350.00

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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.