Home / 936,879-1,405,357.38-272,031

Finding the Fourth Proportional to 936,879, 1,405,357.38 and 272,031

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Solution

The fourth proportional to 936,879, 1,405,357.38 and 272,031 is: 408,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,879 : 1,405,357.38 = 272,031 : x
  2. Step 2: Convert to fraction form
    936,879/1,405,357.38 = 272,031/x
  3. Step 3: Cross multiply
    936,879x = 1,405,357.38 × 272,031
  4. Step 4: Simplify right side
    936,879x = 382,300,773,438.78
  5. Step 5: Solve for x
    x = 382,300,773,438.78/936,879
  6. Step 6: Final answer
    x = 408,057.79

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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.