Home / 628,790.27-867,704.47-342,310.59

Finding the Fourth Proportional to 628,790.27, 867,704.47 and 342,310.59

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Solution

The fourth proportional to 628,790.27, 867,704.47 and 342,310.59 is: 472,374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,790.27 : 867,704.47 = 342,310.59 : x
  2. Step 2: Convert to fraction form
    628,790.27/867,704.47 = 342,310.59/x
  3. Step 3: Cross multiply
    628,790.27x = 867,704.47 × 342,310.59
  4. Step 4: Simplify right side
    628,790.27x = 297,024,428,215.56
  5. Step 5: Solve for x
    x = 297,024,428,215.56/628,790.27
  6. Step 6: Final answer
    x = 472,374.41

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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.