Home / 1,172,431.40-1,758,647.10-699,650.60

Finding the Fourth Proportional to 1,172,431.40, 1,758,647.10 and 699,650.60

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Solution

The fourth proportional to 1,172,431.40, 1,758,647.10 and 699,650.60 is: 1,049,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,431.40 : 1,758,647.10 = 699,650.60 : x
  2. Step 2: Convert to fraction form
    1,172,431.40/1,758,647.10 = 699,650.60/x
  3. Step 3: Cross multiply
    1,172,431.40x = 1,758,647.10 × 699,650.60
  4. Step 4: Simplify right side
    1,172,431.40x = 1,230,438,498,703.26
  5. Step 5: Solve for x
    x = 1,230,438,498,703.26/1,172,431.40
  6. Step 6: Final answer
    x = 1,049,475.90

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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.