Home / 753,915.60-1,040,396.40-431,682.48

Finding the Fourth Proportional to 753,915.60, 1,040,396.40 and 431,682.48

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Solution

The fourth proportional to 753,915.60, 1,040,396.40 and 431,682.48 is: 595,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,915.60 : 1,040,396.40 = 431,682.48 : x
  2. Step 2: Convert to fraction form
    753,915.60/1,040,396.40 = 431,682.48/x
  3. Step 3: Cross multiply
    753,915.60x = 1,040,396.40 × 431,682.48
  4. Step 4: Simplify right side
    753,915.60x = 449,120,898,135.07
  5. Step 5: Solve for x
    x = 449,120,898,135.07/753,915.60
  6. Step 6: Final answer
    x = 595,717.74

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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.