Home / 919,920.65-1,379,783.92-246,069.95

Finding the Fourth Proportional to 919,920.65, 1,379,783.92 and 246,069.95

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Solution

The fourth proportional to 919,920.65, 1,379,783.92 and 246,069.95 is: 369,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,920.65 : 1,379,783.92 = 246,069.95 : x
  2. Step 2: Convert to fraction form
    919,920.65/1,379,783.92 = 246,069.95/x
  3. Step 3: Cross multiply
    919,920.65x = 1,379,783.92 × 246,069.95
  4. Step 4: Simplify right side
    919,920.65x = 339,523,358,974.85
  5. Step 5: Solve for x
    x = 339,523,358,974.85/919,920.65
  6. Step 6: Final answer
    x = 369,078.96

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1.5x scale

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.