Home / 1,100,197.61-1,649,976.26-426,128.57

Finding the Fourth Proportional to 1,100,197.61, 1,649,976.26 and 426,128.57

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Solution

The fourth proportional to 1,100,197.61, 1,649,976.26 and 426,128.57 is: 639,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,197.61 : 1,649,976.26 = 426,128.57 : x
  2. Step 2: Convert to fraction form
    1,100,197.61/1,649,976.26 = 426,128.57/x
  3. Step 3: Cross multiply
    1,100,197.61x = 1,649,976.26 × 426,128.57
  4. Step 4: Simplify right side
    1,100,197.61x = 703,102,024,207.75
  5. Step 5: Solve for x
    x = 703,102,024,207.75/1,100,197.61
  6. Step 6: Final answer
    x = 639,068.85

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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.