Home / 1,278,532.36-1,917,300.06-479,377.48

Finding the Fourth Proportional to 1,278,532.36, 1,917,300.06 and 479,377.48

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Solution

The fourth proportional to 1,278,532.36, 1,917,300.06 and 479,377.48 is: 718,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,532.36 : 1,917,300.06 = 479,377.48 : x
  2. Step 2: Convert to fraction form
    1,278,532.36/1,917,300.06 = 479,377.48/x
  3. Step 3: Cross multiply
    1,278,532.36x = 1,917,300.06 × 479,377.48
  4. Step 4: Simplify right side
    1,278,532.36x = 919,110,471,166.65
  5. Step 5: Solve for x
    x = 919,110,471,166.65/1,278,532.36
  6. Step 6: Final answer
    x = 718,879.32

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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.