Home / 1,126,887.46-1,690,392.75-285,446.50

Finding the Fourth Proportional to 1,126,887.46, 1,690,392.75 and 285,446.50

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Solution

The fourth proportional to 1,126,887.46, 1,690,392.75 and 285,446.50 is: 428,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,887.46 : 1,690,392.75 = 285,446.50 : x
  2. Step 2: Convert to fraction form
    1,126,887.46/1,690,392.75 = 285,446.50/x
  3. Step 3: Cross multiply
    1,126,887.46x = 1,690,392.75 × 285,446.50
  4. Step 4: Simplify right side
    1,126,887.46x = 482,516,694,112.88
  5. Step 5: Solve for x
    x = 482,516,694,112.88/1,126,887.46
  6. Step 6: Final answer
    x = 428,185.34

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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.