Home / 669,016.75-923,124.01-378,626.95

Finding the Fourth Proportional to 669,016.75, 923,124.01 and 378,626.95

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Solution

The fourth proportional to 669,016.75, 923,124.01 and 378,626.95 is: 522,437.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,016.75 : 923,124.01 = 378,626.95 : x
  2. Step 2: Convert to fraction form
    669,016.75/923,124.01 = 378,626.95/x
  3. Step 3: Cross multiply
    669,016.75x = 923,124.01 × 378,626.95
  4. Step 4: Simplify right side
    669,016.75x = 349,519,628,378.07
  5. Step 5: Solve for x
    x = 349,519,628,378.07/669,016.75
  6. Step 6: Final answer
    x = 522,437.78

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Double scale
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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.