Home / 379,736.84-523,789.89-243,555.09

Finding the Fourth Proportional to 379,736.84, 523,789.89 and 243,555.09

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Solution

The fourth proportional to 379,736.84, 523,789.89 and 243,555.09 is: 335,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,736.84 : 523,789.89 = 243,555.09 : x
  2. Step 2: Convert to fraction form
    379,736.84/523,789.89 = 243,555.09/x
  3. Step 3: Cross multiply
    379,736.84x = 523,789.89 × 243,555.09
  4. Step 4: Simplify right side
    379,736.84x = 127,571,692,292.49
  5. Step 5: Solve for x
    x = 127,571,692,292.49/379,736.84
  6. Step 6: Final answer
    x = 335,947.63

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1.5x scale

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.