Home / 1,216,126.82-1,822,410.39-684,684.74

Finding the Fourth Proportional to 1,216,126.82, 1,822,410.39 and 684,684.74

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Solution

The fourth proportional to 1,216,126.82, 1,822,410.39 and 684,684.74 is: 1,026,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,126.82 : 1,822,410.39 = 684,684.74 : x
  2. Step 2: Convert to fraction form
    1,216,126.82/1,822,410.39 = 684,684.74/x
  3. Step 3: Cross multiply
    1,216,126.82x = 1,822,410.39 × 684,684.74
  4. Step 4: Simplify right side
    1,216,126.82x = 1,247,776,584,050.45
  5. Step 5: Solve for x
    x = 1,247,776,584,050.45/1,216,126.82
  6. Step 6: Final answer
    x = 1,026,025.05

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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.