Home / 684,356.67-944,418.32-378,453.75

Finding the Fourth Proportional to 684,356.67, 944,418.32 and 378,453.75

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Solution

The fourth proportional to 684,356.67, 944,418.32 and 378,453.75 is: 522,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,356.67 : 944,418.32 = 378,453.75 : x
  2. Step 2: Convert to fraction form
    684,356.67/944,418.32 = 378,453.75/x
  3. Step 3: Cross multiply
    684,356.67x = 944,418.32 × 378,453.75
  4. Step 4: Simplify right side
    684,356.67x = 357,418,652,880.43
  5. Step 5: Solve for x
    x = 357,418,652,880.43/684,356.67
  6. Step 6: Final answer
    x = 522,269.55

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1.5x scale

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.