Home / 684,333.29-1,026,724.83-279,865.74

Finding the Fourth Proportional to 684,333.29, 1,026,724.83 and 279,865.74

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Solution

The fourth proportional to 684,333.29, 1,026,724.83 and 279,865.74 is: 419,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,333.29 : 1,026,724.83 = 279,865.74 : x
  2. Step 2: Convert to fraction form
    684,333.29/1,026,724.83 = 279,865.74/x
  3. Step 3: Cross multiply
    684,333.29x = 1,026,724.83 × 279,865.74
  4. Step 4: Simplify right side
    684,333.29x = 287,345,104,324.32
  5. Step 5: Solve for x
    x = 287,345,104,324.32/684,333.29
  6. Step 6: Final answer
    x = 419,890.59

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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.