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Finding the Fourth Proportional to 1,299,733.80, 1,949,600.70 and 984,805.80

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Solution

The fourth proportional to 1,299,733.80, 1,949,600.70 and 984,805.80 is: 1,477,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,733.80 : 1,949,600.70 = 984,805.80 : x
  2. Step 2: Convert to fraction form
    1,299,733.80/1,949,600.70 = 984,805.80/x
  3. Step 3: Cross multiply
    1,299,733.80x = 1,949,600.70 × 984,805.80
  4. Step 4: Simplify right side
    1,299,733.80x = 1,919,978,077,044.06
  5. Step 5: Solve for x
    x = 1,919,978,077,044.06/1,299,733.80
  6. Step 6: Final answer
    x = 1,477,208.70

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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.