Home / 1,158,178.80-1,736,458.20-684,620.40

Finding the Fourth Proportional to 1,158,178.80, 1,736,458.20 and 684,620.40

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Solution

The fourth proportional to 1,158,178.80, 1,736,458.20 and 684,620.40 is: 1,026,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,178.80 : 1,736,458.20 = 684,620.40 : x
  2. Step 2: Convert to fraction form
    1,158,178.80/1,736,458.20 = 684,620.40/x
  3. Step 3: Cross multiply
    1,158,178.80x = 1,736,458.20 × 684,620.40
  4. Step 4: Simplify right side
    1,158,178.80x = 1,188,814,707,467.28
  5. Step 5: Solve for x
    x = 1,188,814,707,467.28/1,158,178.80
  6. Step 6: Final answer
    x = 1,026,451.79

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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.