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Finding the Fourth Proportional to 965,338.80, 1,448,008.20 and 890,689.20

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Solution

The fourth proportional to 965,338.80, 1,448,008.20 and 890,689.20 is: 1,336,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,338.80 : 1,448,008.20 = 890,689.20 : x
  2. Step 2: Convert to fraction form
    965,338.80/1,448,008.20 = 890,689.20/x
  3. Step 3: Cross multiply
    965,338.80x = 1,448,008.20 × 890,689.20
  4. Step 4: Simplify right side
    965,338.80x = 1,289,725,265,251.44
  5. Step 5: Solve for x
    x = 1,289,725,265,251.44/965,338.80
  6. Step 6: Final answer
    x = 1,336,033.80

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1.5x scale

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.