Home / 2,132,403.60-3,193,939.80-1,289,485.20

Finding the Fourth Proportional to 2,132,403.60, 3,193,939.80 and 1,289,485.20

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Solution

The fourth proportional to 2,132,403.60, 3,193,939.80 and 1,289,485.20 is: 1,931,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,403.60 : 3,193,939.80 = 1,289,485.20 : x
  2. Step 2: Convert to fraction form
    2,132,403.60/3,193,939.80 = 1,289,485.20/x
  3. Step 3: Cross multiply
    2,132,403.60x = 3,193,939.80 × 1,289,485.20
  4. Step 4: Simplify right side
    2,132,403.60x = 4,118,538,101,790.96
  5. Step 5: Solve for x
    x = 4,118,538,101,790.96/2,132,403.60
  6. Step 6: Final answer
    x = 1,931,406.47

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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.