Home / 1,412,721.26-1,949,579.70-768,145.80

Finding the Fourth Proportional to 1,412,721.26, 1,949,579.70 and 768,145.80

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Solution

The fourth proportional to 1,412,721.26, 1,949,579.70 and 768,145.80 is: 1,060,054.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,721.26 : 1,949,579.70 = 768,145.80 : x
  2. Step 2: Convert to fraction form
    1,412,721.26/1,949,579.70 = 768,145.80/x
  3. Step 3: Cross multiply
    1,412,721.26x = 1,949,579.70 × 768,145.80
  4. Step 4: Simplify right side
    1,412,721.26x = 1,497,561,467,071.46
  5. Step 5: Solve for x
    x = 1,497,561,467,071.46/1,412,721.26
  6. Step 6: Final answer
    x = 1,060,054.46

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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.