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Finding the Fourth Proportional to 868,783.84, 1,303,379.88 and 269,714.32

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Solution

The fourth proportional to 868,783.84, 1,303,379.88 and 269,714.32 is: 404,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,783.84 : 1,303,379.88 = 269,714.32 : x
  2. Step 2: Convert to fraction form
    868,783.84/1,303,379.88 = 269,714.32/x
  3. Step 3: Cross multiply
    868,783.84x = 1,303,379.88 × 269,714.32
  4. Step 4: Simplify right side
    868,783.84x = 351,540,218,035.88
  5. Step 5: Solve for x
    x = 351,540,218,035.88/868,783.84
  6. Step 6: Final answer
    x = 404,634.85

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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.