Home / 1,067,910.80-1,601,866.20-669,779.60

Finding the Fourth Proportional to 1,067,910.80, 1,601,866.20 and 669,779.60

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Solution

The fourth proportional to 1,067,910.80, 1,601,866.20 and 669,779.60 is: 1,004,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067,910.80 : 1,601,866.20 = 669,779.60 : x
  2. Step 2: Convert to fraction form
    1,067,910.80/1,601,866.20 = 669,779.60/x
  3. Step 3: Cross multiply
    1,067,910.80x = 1,601,866.20 × 669,779.60
  4. Step 4: Simplify right side
    1,067,910.80x = 1,072,897,302,689.52
  5. Step 5: Solve for x
    x = 1,072,897,302,689.52/1,067,910.80
  6. Step 6: Final answer
    x = 1,004,669.40

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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.