Home / 1,255,485.80-1,880,771.10-755,364.20

Finding the Fourth Proportional to 1,255,485.80, 1,880,771.10 and 755,364.20

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Solution

The fourth proportional to 1,255,485.80, 1,880,771.10 and 755,364.20 is: 1,131,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,485.80 : 1,880,771.10 = 755,364.20 : x
  2. Step 2: Convert to fraction form
    1,255,485.80/1,880,771.10 = 755,364.20/x
  3. Step 3: Cross multiply
    1,255,485.80x = 1,880,771.10 × 755,364.20
  4. Step 4: Simplify right side
    1,255,485.80x = 1,420,667,157,334.62
  5. Step 5: Solve for x
    x = 1,420,667,157,334.62/1,255,485.80
  6. Step 6: Final answer
    x = 1,131,567.68

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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.