Home / 701,771.40-1,052,138.70-280,830.60

Finding the Fourth Proportional to 701,771.40, 1,052,138.70 and 280,830.60

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Solution

The fourth proportional to 701,771.40, 1,052,138.70 and 280,830.60 is: 421,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,771.40 : 1,052,138.70 = 280,830.60 : x
  2. Step 2: Convert to fraction form
    701,771.40/1,052,138.70 = 280,830.60/x
  3. Step 3: Cross multiply
    701,771.40x = 1,052,138.70 × 280,830.60
  4. Step 4: Simplify right side
    701,771.40x = 295,472,742,404.22
  5. Step 5: Solve for x
    x = 295,472,742,404.22/701,771.40
  6. Step 6: Final answer
    x = 421,038.45

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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.