Home / 860,621.85-1,289,751.78-544,512.87

Finding the Fourth Proportional to 860,621.85, 1,289,751.78 and 544,512.87

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Solution

The fourth proportional to 860,621.85, 1,289,751.78 and 544,512.87 is: 816,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,621.85 : 1,289,751.78 = 544,512.87 : x
  2. Step 2: Convert to fraction form
    860,621.85/1,289,751.78 = 544,512.87/x
  3. Step 3: Cross multiply
    860,621.85x = 1,289,751.78 × 544,512.87
  4. Step 4: Simplify right side
    860,621.85x = 702,286,445,357.33
  5. Step 5: Solve for x
    x = 702,286,445,357.33/860,621.85
  6. Step 6: Final answer
    x = 816,022.10

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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.