Home / 781,924.80-1,172,909.10-276,414.36

Finding the Fourth Proportional to 781,924.80, 1,172,909.10 and 276,414.36

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Solution

The fourth proportional to 781,924.80, 1,172,909.10 and 276,414.36 is: 414,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,924.80 : 1,172,909.10 = 276,414.36 : x
  2. Step 2: Convert to fraction form
    781,924.80/1,172,909.10 = 276,414.36/x
  3. Step 3: Cross multiply
    781,924.80x = 1,172,909.10 × 276,414.36
  4. Step 4: Simplify right side
    781,924.80x = 324,208,918,214.68
  5. Step 5: Solve for x
    x = 324,208,918,214.68/781,924.80
  6. Step 6: Final answer
    x = 414,629.28

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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.