Home / 693,479.70-1,040,333.40-213,707.58

Finding the Fourth Proportional to 693,479.70, 1,040,333.40 and 213,707.58

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Solution

The fourth proportional to 693,479.70, 1,040,333.40 and 213,707.58 is: 320,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,479.70 : 1,040,333.40 = 213,707.58 : x
  2. Step 2: Convert to fraction form
    693,479.70/1,040,333.40 = 213,707.58/x
  3. Step 3: Cross multiply
    693,479.70x = 1,040,333.40 × 213,707.58
  4. Step 4: Simplify right side
    693,479.70x = 222,327,137,208.42
  5. Step 5: Solve for x
    x = 222,327,137,208.42/693,479.70
  6. Step 6: Final answer
    x = 320,596.46

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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.