Home / 415,541.41-623,090.58-215,660.55

Finding the Fourth Proportional to 415,541.41, 623,090.58 and 215,660.55

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Solution

The fourth proportional to 415,541.41, 623,090.58 and 215,660.55 is: 323,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,541.41 : 623,090.58 = 215,660.55 : x
  2. Step 2: Convert to fraction form
    415,541.41/623,090.58 = 215,660.55/x
  3. Step 3: Cross multiply
    415,541.41x = 623,090.58 × 215,660.55
  4. Step 4: Simplify right side
    415,541.41x = 134,376,057,182.62
  5. Step 5: Solve for x
    x = 134,376,057,182.62/415,541.41
  6. Step 6: Final answer
    x = 323,375.85

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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.