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Finding the Fourth Proportional to 678,882.84, 936,873.12 and 372,963.12

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Solution

The fourth proportional to 678,882.84, 936,873.12 and 372,963.12 is: 514,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,882.84 : 936,873.12 = 372,963.12 : x
  2. Step 2: Convert to fraction form
    678,882.84/936,873.12 = 372,963.12/x
  3. Step 3: Cross multiply
    678,882.84x = 936,873.12 × 372,963.12
  4. Step 4: Simplify right side
    678,882.84x = 349,419,121,879.33
  5. Step 5: Solve for x
    x = 349,419,121,879.33/678,882.84
  6. Step 6: Final answer
    x = 514,697.24

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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.