Home / 860,048.69-1,290,122.24-261,029.39

Finding the Fourth Proportional to 860,048.69, 1,290,122.24 and 261,029.39

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Solution

The fourth proportional to 860,048.69, 1,290,122.24 and 261,029.39 is: 391,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,048.69 : 1,290,122.24 = 261,029.39 : x
  2. Step 2: Convert to fraction form
    860,048.69/1,290,122.24 = 261,029.39/x
  3. Step 3: Cross multiply
    860,048.69x = 1,290,122.24 × 261,029.39
  4. Step 4: Simplify right side
    860,048.69x = 336,759,813,576.88
  5. Step 5: Solve for x
    x = 336,759,813,576.88/860,048.69
  6. Step 6: Final answer
    x = 391,559.01

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1.5x scale

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.