Home / 1,211,445.75-1,817,162.07-698,778.60

Finding the Fourth Proportional to 1,211,445.75, 1,817,162.07 and 698,778.60

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Solution

The fourth proportional to 1,211,445.75, 1,817,162.07 and 698,778.60 is: 1,048,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,445.75 : 1,817,162.07 = 698,778.60 : x
  2. Step 2: Convert to fraction form
    1,211,445.75/1,817,162.07 = 698,778.60/x
  3. Step 3: Cross multiply
    1,211,445.75x = 1,817,162.07 × 698,778.60
  4. Step 4: Simplify right side
    1,211,445.75x = 1,269,793,967,247.70
  5. Step 5: Solve for x
    x = 1,269,793,967,247.70/1,211,445.75
  6. Step 6: Final answer
    x = 1,048,164.12

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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.