Home / 1,420,629.20-2,132,153.40-579,784.40

Finding the Fourth Proportional to 1,420,629.20, 2,132,153.40 and 579,784.40

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Solution

The fourth proportional to 1,420,629.20, 2,132,153.40 and 579,784.40 is: 870,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,629.20 : 2,132,153.40 = 579,784.40 : x
  2. Step 2: Convert to fraction form
    1,420,629.20/2,132,153.40 = 579,784.40/x
  3. Step 3: Cross multiply
    1,420,629.20x = 2,132,153.40 × 579,784.40
  4. Step 4: Simplify right side
    1,420,629.20x = 1,236,189,279,726.96
  5. Step 5: Solve for x
    x = 1,236,189,279,726.96/1,420,629.20
  6. Step 6: Final answer
    x = 870,170.26

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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.