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Finding the Fourth Proportional to 678,294.84, 936,044.57 and 372,363.60

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Solution

The fourth proportional to 678,294.84, 936,044.57 and 372,363.60 is: 513,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,294.84 : 936,044.57 = 372,363.60 : x
  2. Step 2: Convert to fraction form
    678,294.84/936,044.57 = 372,363.60/x
  3. Step 3: Cross multiply
    678,294.84x = 936,044.57 × 372,363.60
  4. Step 4: Simplify right side
    678,294.84x = 348,548,923,983.83
  5. Step 5: Solve for x
    x = 348,548,923,983.83/678,294.84
  6. Step 6: Final answer
    x = 513,860.50

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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.