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Finding the Fourth Proportional to 701,018.28, 967,405.68 and 378,728.19

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Solution

The fourth proportional to 701,018.28, 967,405.68 and 378,728.19 is: 522,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,018.28 : 967,405.68 = 378,728.19 : x
  2. Step 2: Convert to fraction form
    701,018.28/967,405.68 = 378,728.19/x
  3. Step 3: Cross multiply
    701,018.28x = 967,405.68 × 378,728.19
  4. Step 4: Simplify right side
    701,018.28x = 366,383,802,182.12
  5. Step 5: Solve for x
    x = 366,383,802,182.12/701,018.28
  6. Step 6: Final answer
    x = 522,645.15

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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.