Home / 684,311.50-944,330.25-378,382.54

Finding the Fourth Proportional to 684,311.50, 944,330.25 and 378,382.54

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Solution

The fourth proportional to 684,311.50, 944,330.25 and 378,382.54 is: 522,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,311.50 : 944,330.25 = 378,382.54 : x
  2. Step 2: Convert to fraction form
    684,311.50/944,330.25 = 378,382.54/x
  3. Step 3: Cross multiply
    684,311.50x = 944,330.25 × 378,382.54
  4. Step 4: Simplify right side
    684,311.50x = 357,318,078,593.84
  5. Step 5: Solve for x
    x = 357,318,078,593.84/684,311.50
  6. Step 6: Final answer
    x = 522,157.06

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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.