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Finding the Fourth Proportional to 837,491.40, 1,256,237.10 and 799,000.20

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Solution

The fourth proportional to 837,491.40, 1,256,237.10 and 799,000.20 is: 1,198,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,491.40 : 1,256,237.10 = 799,000.20 : x
  2. Step 2: Convert to fraction form
    837,491.40/1,256,237.10 = 799,000.20/x
  3. Step 3: Cross multiply
    837,491.40x = 1,256,237.10 × 799,000.20
  4. Step 4: Simplify right side
    837,491.40x = 1,003,733,694,147.42
  5. Step 5: Solve for x
    x = 1,003,733,694,147.42/837,491.40
  6. Step 6: Final answer
    x = 1,198,500.30

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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.