Home / 439,720.63-606,814.67-248,729.92

Finding the Fourth Proportional to 439,720.63, 606,814.67 and 248,729.92

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Solution

The fourth proportional to 439,720.63, 606,814.67 and 248,729.92 is: 343,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,720.63 : 606,814.67 = 248,729.92 : x
  2. Step 2: Convert to fraction form
    439,720.63/606,814.67 = 248,729.92/x
  3. Step 3: Cross multiply
    439,720.63x = 606,814.67 × 248,729.92
  4. Step 4: Simplify right side
    439,720.63x = 150,932,964,323.93
  5. Step 5: Solve for x
    x = 150,932,964,323.93/439,720.63
  6. Step 6: Final answer
    x = 343,247.40

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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.