Home / 485,849.07-670,290.96-281,785.56

Finding the Fourth Proportional to 485,849.07, 670,290.96 and 281,785.56

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Solution

The fourth proportional to 485,849.07, 670,290.96 and 281,785.56 is: 388,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,849.07 : 670,290.96 = 281,785.56 : x
  2. Step 2: Convert to fraction form
    485,849.07/670,290.96 = 281,785.56/x
  3. Step 3: Cross multiply
    485,849.07x = 670,290.96 × 281,785.56
  4. Step 4: Simplify right side
    485,849.07x = 188,878,313,526.54
  5. Step 5: Solve for x
    x = 188,878,313,526.54/485,849.07
  6. Step 6: Final answer
    x = 388,759.24

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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.