Home / 693,478.60-1,040,298.90-220,211.80

Finding the Fourth Proportional to 693,478.60, 1,040,298.90 and 220,211.80

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Solution

The fourth proportional to 693,478.60, 1,040,298.90 and 220,211.80 is: 330,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,478.60 : 1,040,298.90 = 220,211.80 : x
  2. Step 2: Convert to fraction form
    693,478.60/1,040,298.90 = 220,211.80/x
  3. Step 3: Cross multiply
    693,478.60x = 1,040,298.90 × 220,211.80
  4. Step 4: Simplify right side
    693,478.60x = 229,086,093,307.02
  5. Step 5: Solve for x
    x = 229,086,093,307.02/693,478.60
  6. Step 6: Final answer
    x = 330,343.42

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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.