Home / 1,079,074.80-1,619,195.40-480,128.40

Finding the Fourth Proportional to 1,079,074.80, 1,619,195.40 and 480,128.40

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Solution

The fourth proportional to 1,079,074.80, 1,619,195.40 and 480,128.40 is: 720,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,074.80 : 1,619,195.40 = 480,128.40 : x
  2. Step 2: Convert to fraction form
    1,079,074.80/1,619,195.40 = 480,128.40/x
  3. Step 3: Cross multiply
    1,079,074.80x = 1,619,195.40 × 480,128.40
  4. Step 4: Simplify right side
    1,079,074.80x = 777,421,696,689.36
  5. Step 5: Solve for x
    x = 777,421,696,689.36/1,079,074.80
  6. Step 6: Final answer
    x = 720,452.09

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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.