Home / 684,026.09-944,049.77-393,631.69

Finding the Fourth Proportional to 684,026.09, 944,049.77 and 393,631.69

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Solution

The fourth proportional to 684,026.09, 944,049.77 and 393,631.69 is: 543,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,026.09 : 944,049.77 = 393,631.69 : x
  2. Step 2: Convert to fraction form
    684,026.09/944,049.77 = 393,631.69/x
  3. Step 3: Cross multiply
    684,026.09x = 944,049.77 × 393,631.69
  4. Step 4: Simplify right side
    684,026.09x = 371,607,906,409.21
  5. Step 5: Solve for x
    x = 371,607,906,409.21/684,026.09
  6. Step 6: Final answer
    x = 543,265.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.