Home / 1,412,342.15-1,949,009.19-767,778.57

Finding the Fourth Proportional to 1,412,342.15, 1,949,009.19 and 767,778.57

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Solution

The fourth proportional to 1,412,342.15, 1,949,009.19 and 767,778.57 is: 1,059,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,342.15 : 1,949,009.19 = 767,778.57 : x
  2. Step 2: Convert to fraction form
    1,412,342.15/1,949,009.19 = 767,778.57/x
  3. Step 3: Cross multiply
    1,412,342.15x = 1,949,009.19 × 767,778.57
  4. Step 4: Simplify right side
    1,412,342.15x = 1,496,407,488,815.06
  5. Step 5: Solve for x
    x = 1,496,407,488,815.06/1,412,342.15
  6. Step 6: Final answer
    x = 1,059,521.94

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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.