Home / 2,987,075.85-4,120,960.36-1,728,935.66

Finding the Fourth Proportional to 2,987,075.85, 4,120,960.36 and 1,728,935.66

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Solution

The fourth proportional to 2,987,075.85, 4,120,960.36 and 1,728,935.66 is: 2,385,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,075.85 : 4,120,960.36 = 1,728,935.66 : x
  2. Step 2: Convert to fraction form
    2,987,075.85/4,120,960.36 = 1,728,935.66/x
  3. Step 3: Cross multiply
    2,987,075.85x = 4,120,960.36 × 1,728,935.66
  4. Step 4: Simplify right side
    2,987,075.85x = 7,124,875,319,850.44
  5. Step 5: Solve for x
    x = 7,124,875,319,850.44/2,987,075.85
  6. Step 6: Final answer
    x = 2,385,234.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.