Home / 1,290,738.80-1,936,108.20-934,079.60

Finding the Fourth Proportional to 1,290,738.80, 1,936,108.20 and 934,079.60

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Solution

The fourth proportional to 1,290,738.80, 1,936,108.20 and 934,079.60 is: 1,401,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,738.80 : 1,936,108.20 = 934,079.60 : x
  2. Step 2: Convert to fraction form
    1,290,738.80/1,936,108.20 = 934,079.60/x
  3. Step 3: Cross multiply
    1,290,738.80x = 1,936,108.20 × 934,079.60
  4. Step 4: Simplify right side
    1,290,738.80x = 1,808,479,173,012.72
  5. Step 5: Solve for x
    x = 1,808,479,173,012.72/1,290,738.80
  6. Step 6: Final answer
    x = 1,401,119.40

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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.