Home / 1,078,812.36-1,618,247.70-280,076.22

Finding the Fourth Proportional to 1,078,812.36, 1,618,247.70 and 280,076.22

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Solution

The fourth proportional to 1,078,812.36, 1,618,247.70 and 280,076.22 is: 420,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,812.36 : 1,618,247.70 = 280,076.22 : x
  2. Step 2: Convert to fraction form
    1,078,812.36/1,618,247.70 = 280,076.22/x
  3. Step 3: Cross multiply
    1,078,812.36x = 1,618,247.70 × 280,076.22
  4. Step 4: Simplify right side
    1,078,812.36x = 453,232,698,839.69
  5. Step 5: Solve for x
    x = 453,232,698,839.69/1,078,812.36
  6. Step 6: Final answer
    x = 420,121.90

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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.