Home / 526,419.62-726,439.82-300,021.38

Finding the Fourth Proportional to 526,419.62, 726,439.82 and 300,021.38

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Solution

The fourth proportional to 526,419.62, 726,439.82 and 300,021.38 is: 414,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,419.62 : 726,439.82 = 300,021.38 : x
  2. Step 2: Convert to fraction form
    526,419.62/726,439.82 = 300,021.38/x
  3. Step 3: Cross multiply
    526,419.62x = 726,439.82 × 300,021.38
  4. Step 4: Simplify right side
    526,419.62x = 217,947,477,283.35
  5. Step 5: Solve for x
    x = 217,947,477,283.35/526,419.62
  6. Step 6: Final answer
    x = 414,018.53

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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.