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Finding the Fourth Proportional to 965,983.80, 1,448,975.70 and 766,918.20

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Solution

The fourth proportional to 965,983.80, 1,448,975.70 and 766,918.20 is: 1,150,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,983.80 : 1,448,975.70 = 766,918.20 : x
  2. Step 2: Convert to fraction form
    965,983.80/1,448,975.70 = 766,918.20/x
  3. Step 3: Cross multiply
    965,983.80x = 1,448,975.70 × 766,918.20
  4. Step 4: Simplify right side
    965,983.80x = 1,111,245,835,687.74
  5. Step 5: Solve for x
    x = 1,111,245,835,687.74/965,983.80
  6. Step 6: Final answer
    x = 1,150,377.30

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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.