Home / 753,986-1,040,502.84-431,701.04

Finding the Fourth Proportional to 753,986, 1,040,502.84 and 431,701.04

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Solution

The fourth proportional to 753,986, 1,040,502.84 and 431,701.04 is: 595,748.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,986 : 1,040,502.84 = 431,701.04 : x
  2. Step 2: Convert to fraction form
    753,986/1,040,502.84 = 431,701.04/x
  3. Step 3: Cross multiply
    753,986x = 1,040,502.84 × 431,701.04
  4. Step 4: Simplify right side
    753,986x = 449,186,158,150.95
  5. Step 5: Solve for x
    x = 449,186,158,150.95/753,986
  6. Step 6: Final answer
    x = 595,748.67

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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.