Home / 1,079,076.80-1,619,198.40-480,130.40

Finding the Fourth Proportional to 1,079,076.80, 1,619,198.40 and 480,130.40

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Solution

The fourth proportional to 1,079,076.80, 1,619,198.40 and 480,130.40 is: 720,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,076.80 : 1,619,198.40 = 480,130.40 : x
  2. Step 2: Convert to fraction form
    1,079,076.80/1,619,198.40 = 480,130.40/x
  3. Step 3: Cross multiply
    1,079,076.80x = 1,619,198.40 × 480,130.40
  4. Step 4: Simplify right side
    1,079,076.80x = 777,426,375,471.36
  5. Step 5: Solve for x
    x = 777,426,375,471.36/1,079,076.80
  6. Step 6: Final answer
    x = 720,455.09

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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.