Home / 684,439.62-944,532.95-378,500.19

Finding the Fourth Proportional to 684,439.62, 944,532.95 and 378,500.19

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Solution

The fourth proportional to 684,439.62, 944,532.95 and 378,500.19 is: 522,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,439.62 : 944,532.95 = 378,500.19 : x
  2. Step 2: Convert to fraction form
    684,439.62/944,532.95 = 378,500.19/x
  3. Step 3: Cross multiply
    684,439.62x = 944,532.95 × 378,500.19
  4. Step 4: Simplify right side
    684,439.62x = 357,505,899,143.76
  5. Step 5: Solve for x
    x = 357,505,899,143.76/684,439.62
  6. Step 6: Final answer
    x = 522,333.73

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Double scale
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Similar ratio
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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.