Home / 453,738.78-678,898.09-270,692.66

Finding the Fourth Proportional to 453,738.78, 678,898.09 and 270,692.66

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Solution

The fourth proportional to 453,738.78, 678,898.09 and 270,692.66 is: 405,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,738.78 : 678,898.09 = 270,692.66 : x
  2. Step 2: Convert to fraction form
    453,738.78/678,898.09 = 270,692.66/x
  3. Step 3: Cross multiply
    453,738.78x = 678,898.09 × 270,692.66
  4. Step 4: Simplify right side
    453,738.78x = 183,772,725,103.07
  5. Step 5: Solve for x
    x = 183,772,725,103.07/453,738.78
  6. Step 6: Final answer
    x = 405,018.78

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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.