Home / 860,212.42-1,290,581.06-439,783.54

Finding the Fourth Proportional to 860,212.42, 1,290,581.06 and 439,783.54

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Solution

The fourth proportional to 860,212.42, 1,290,581.06 and 439,783.54 is: 659,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,212.42 : 1,290,581.06 = 439,783.54 : x
  2. Step 2: Convert to fraction form
    860,212.42/1,290,581.06 = 439,783.54/x
  3. Step 3: Cross multiply
    860,212.42x = 1,290,581.06 × 439,783.54
  4. Step 4: Simplify right side
    860,212.42x = 567,576,307,223.75
  5. Step 5: Solve for x
    x = 567,576,307,223.75/860,212.42
  6. Step 6: Final answer
    x = 659,809.48

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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.