Home / 778,698.94-1,168,086.66-379,680.78

Finding the Fourth Proportional to 778,698.94, 1,168,086.66 and 379,680.78

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Solution

The fourth proportional to 778,698.94, 1,168,086.66 and 379,680.78 is: 569,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,698.94 : 1,168,086.66 = 379,680.78 : x
  2. Step 2: Convert to fraction form
    778,698.94/1,168,086.66 = 379,680.78/x
  3. Step 3: Cross multiply
    778,698.94x = 1,168,086.66 × 379,680.78
  4. Step 4: Simplify right side
    778,698.94x = 443,500,054,176.40
  5. Step 5: Solve for x
    x = 443,500,054,176.40/778,698.94
  6. Step 6: Final answer
    x = 569,539.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.