Home / 693,775.40-1,040,403.90-482,786.60

Finding the Fourth Proportional to 693,775.40, 1,040,403.90 and 482,786.60

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Solution

The fourth proportional to 693,775.40, 1,040,403.90 and 482,786.60 is: 723,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,775.40 : 1,040,403.90 = 482,786.60 : x
  2. Step 2: Convert to fraction form
    693,775.40/1,040,403.90 = 482,786.60/x
  3. Step 3: Cross multiply
    693,775.40x = 1,040,403.90 × 482,786.60
  4. Step 4: Simplify right side
    693,775.40x = 502,293,061,507.74
  5. Step 5: Solve for x
    x = 502,293,061,507.74/693,775.40
  6. Step 6: Final answer
    x = 723,999.53

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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.