Home / 654,874.34-903,836.88-379,192.05

Finding the Fourth Proportional to 654,874.34, 903,836.88 and 379,192.05

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Solution

The fourth proportional to 654,874.34, 903,836.88 and 379,192.05 is: 523,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,874.34 : 903,836.88 = 379,192.05 : x
  2. Step 2: Convert to fraction form
    654,874.34/903,836.88 = 379,192.05/x
  3. Step 3: Cross multiply
    654,874.34x = 903,836.88 × 379,192.05
  4. Step 4: Simplify right side
    654,874.34x = 342,727,759,392.80
  5. Step 5: Solve for x
    x = 342,727,759,392.80/654,874.34
  6. Step 6: Final answer
    x = 523,348.89

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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.