Home / 693,124.40-1,040,147.40-393,604.40

Finding the Fourth Proportional to 693,124.40, 1,040,147.40 and 393,604.40

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Solution

The fourth proportional to 693,124.40, 1,040,147.40 and 393,604.40 is: 590,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,124.40 : 1,040,147.40 = 393,604.40 : x
  2. Step 2: Convert to fraction form
    693,124.40/1,040,147.40 = 393,604.40/x
  3. Step 3: Cross multiply
    693,124.40x = 1,040,147.40 × 393,604.40
  4. Step 4: Simplify right side
    693,124.40x = 409,406,593,288.56
  5. Step 5: Solve for x
    x = 409,406,593,288.56/693,124.40
  6. Step 6: Final answer
    x = 590,668.27

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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.