Home / 693,478.10-1,040,298.15-220,211.30

Finding the Fourth Proportional to 693,478.10, 1,040,298.15 and 220,211.30

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Solution

The fourth proportional to 693,478.10, 1,040,298.15 and 220,211.30 is: 330,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,478.10 : 1,040,298.15 = 220,211.30 : x
  2. Step 2: Convert to fraction form
    693,478.10/1,040,298.15 = 220,211.30/x
  3. Step 3: Cross multiply
    693,478.10x = 1,040,298.15 × 220,211.30
  4. Step 4: Simplify right side
    693,478.10x = 229,085,407,999.10
  5. Step 5: Solve for x
    x = 229,085,407,999.10/693,478.10
  6. Step 6: Final answer
    x = 330,342.67

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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.