Home / 1,405,471.44-1,939,550.16-760,891.20

Finding the Fourth Proportional to 1,405,471.44, 1,939,550.16 and 760,891.20

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Solution

The fourth proportional to 1,405,471.44, 1,939,550.16 and 760,891.20 is: 1,050,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,471.44 : 1,939,550.16 = 760,891.20 : x
  2. Step 2: Convert to fraction form
    1,405,471.44/1,939,550.16 = 760,891.20/x
  3. Step 3: Cross multiply
    1,405,471.44x = 1,939,550.16 × 760,891.20
  4. Step 4: Simplify right side
    1,405,471.44x = 1,475,786,648,702.59
  5. Step 5: Solve for x
    x = 1,475,786,648,702.59/1,405,471.44
  6. Step 6: Final answer
    x = 1,050,029.62

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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.