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Finding the Fourth Proportional to 911,951.80, 1,367,927.70 and 701,999.80

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Solution

The fourth proportional to 911,951.80, 1,367,927.70 and 701,999.80 is: 1,052,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,951.80 : 1,367,927.70 = 701,999.80 : x
  2. Step 2: Convert to fraction form
    911,951.80/1,367,927.70 = 701,999.80/x
  3. Step 3: Cross multiply
    911,951.80x = 1,367,927.70 × 701,999.80
  4. Step 4: Simplify right side
    911,951.80x = 960,284,971,814.46
  5. Step 5: Solve for x
    x = 960,284,971,814.46/911,951.80
  6. Step 6: Final answer
    x = 1,052,999.70

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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.