Home / 853,679.40-1,280,519.10-804,690.60

Finding the Fourth Proportional to 853,679.40, 1,280,519.10 and 804,690.60

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Solution

The fourth proportional to 853,679.40, 1,280,519.10 and 804,690.60 is: 1,207,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,679.40 : 1,280,519.10 = 804,690.60 : x
  2. Step 2: Convert to fraction form
    853,679.40/1,280,519.10 = 804,690.60/x
  3. Step 3: Cross multiply
    853,679.40x = 1,280,519.10 × 804,690.60
  4. Step 4: Simplify right side
    853,679.40x = 1,030,421,682,890.46
  5. Step 5: Solve for x
    x = 1,030,421,682,890.46/853,679.40
  6. Step 6: Final answer
    x = 1,207,035.90

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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.