Home / 684,415.45-1,026,280.54-211,039.30

Finding the Fourth Proportional to 684,415.45, 1,026,280.54 and 211,039.30

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Solution

The fourth proportional to 684,415.45, 1,026,280.54 and 211,039.30 is: 316,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,415.45 : 1,026,280.54 = 211,039.30 : x
  2. Step 2: Convert to fraction form
    684,415.45/1,026,280.54 = 211,039.30/x
  3. Step 3: Cross multiply
    684,415.45x = 1,026,280.54 × 211,039.30
  4. Step 4: Simplify right side
    684,415.45x = 216,585,526,765.22
  5. Step 5: Solve for x
    x = 216,585,526,765.22/684,415.45
  6. Step 6: Final answer
    x = 316,453.30

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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.