Home / 494,143.34-681,925.37-290,198.57

Finding the Fourth Proportional to 494,143.34, 681,925.37 and 290,198.57

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Solution

The fourth proportional to 494,143.34, 681,925.37 and 290,198.57 is: 400,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,143.34 : 681,925.37 = 290,198.57 : x
  2. Step 2: Convert to fraction form
    494,143.34/681,925.37 = 290,198.57/x
  3. Step 3: Cross multiply
    494,143.34x = 681,925.37 × 290,198.57
  4. Step 4: Simplify right side
    494,143.34x = 197,893,762,360.10
  5. Step 5: Solve for x
    x = 197,893,762,360.10/494,143.34
  6. Step 6: Final answer
    x = 400,478.46

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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.