Home / 1,039,305.80-1,558,958.70-684,720.20

Finding the Fourth Proportional to 1,039,305.80, 1,558,958.70 and 684,720.20

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Solution

The fourth proportional to 1,039,305.80, 1,558,958.70 and 684,720.20 is: 1,027,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,305.80 : 1,558,958.70 = 684,720.20 : x
  2. Step 2: Convert to fraction form
    1,039,305.80/1,558,958.70 = 684,720.20/x
  3. Step 3: Cross multiply
    1,039,305.80x = 1,558,958.70 × 684,720.20
  4. Step 4: Simplify right side
    1,039,305.80x = 1,067,450,512,855.74
  5. Step 5: Solve for x
    x = 1,067,450,512,855.74/1,039,305.80
  6. Step 6: Final answer
    x = 1,027,080.30

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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.