Home / 1,240,399.41-1,859,418.09-398,360.67

Finding the Fourth Proportional to 1,240,399.41, 1,859,418.09 and 398,360.67

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Solution

The fourth proportional to 1,240,399.41, 1,859,418.09 and 398,360.67 is: 597,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,399.41 : 1,859,418.09 = 398,360.67 : x
  2. Step 2: Convert to fraction form
    1,240,399.41/1,859,418.09 = 398,360.67/x
  3. Step 3: Cross multiply
    1,240,399.41x = 1,859,418.09 × 398,360.67
  4. Step 4: Simplify right side
    1,240,399.41x = 740,719,036,142.52
  5. Step 5: Solve for x
    x = 740,719,036,142.52/1,240,399.41
  6. Step 6: Final answer
    x = 597,161.71

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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.