Home / 1,331,651.88-1,997,676.72-490,139.64

Finding the Fourth Proportional to 1,331,651.88, 1,997,676.72 and 490,139.64

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Solution

The fourth proportional to 1,331,651.88, 1,997,676.72 and 490,139.64 is: 735,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,651.88 : 1,997,676.72 = 490,139.64 : x
  2. Step 2: Convert to fraction form
    1,331,651.88/1,997,676.72 = 490,139.64/x
  3. Step 3: Cross multiply
    1,331,651.88x = 1,997,676.72 × 490,139.64
  4. Step 4: Simplify right side
    1,331,651.88x = 979,140,548,377.18
  5. Step 5: Solve for x
    x = 979,140,548,377.18/1,331,651.88
  6. Step 6: Final answer
    x = 735,282.67

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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.