Home / 715,315.32-1,072,806.52-266,247.68

Finding the Fourth Proportional to 715,315.32, 1,072,806.52 and 266,247.68

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Solution

The fourth proportional to 715,315.32, 1,072,806.52 and 266,247.68 is: 399,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,315.32 : 1,072,806.52 = 266,247.68 : x
  2. Step 2: Convert to fraction form
    715,315.32/1,072,806.52 = 266,247.68/x
  3. Step 3: Cross multiply
    715,315.32x = 1,072,806.52 × 266,247.68
  4. Step 4: Simplify right side
    715,315.32x = 285,632,247,038.87
  5. Step 5: Solve for x
    x = 285,632,247,038.87/715,315.32
  6. Step 6: Final answer
    x = 399,309.56

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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.