Home / 777,671.28-1,073,131.74-428,796.18

Finding the Fourth Proportional to 777,671.28, 1,073,131.74 and 428,796.18

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Solution

The fourth proportional to 777,671.28, 1,073,131.74 and 428,796.18 is: 591,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,671.28 : 1,073,131.74 = 428,796.18 : x
  2. Step 2: Convert to fraction form
    777,671.28/1,073,131.74 = 428,796.18/x
  3. Step 3: Cross multiply
    777,671.28x = 1,073,131.74 × 428,796.18
  4. Step 4: Simplify right side
    777,671.28x = 460,154,790,748.75
  5. Step 5: Solve for x
    x = 460,154,790,748.75/777,671.28
  6. Step 6: Final answer
    x = 591,708.61

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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.