Home / 2,910,431.08-4,016,515.90-1,621,271.12

Finding the Fourth Proportional to 2,910,431.08, 4,016,515.90 and 1,621,271.12

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Solution

The fourth proportional to 2,910,431.08, 4,016,515.90 and 1,621,271.12 is: 2,237,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910,431.08 : 4,016,515.90 = 1,621,271.12 : x
  2. Step 2: Convert to fraction form
    2,910,431.08/4,016,515.90 = 1,621,271.12/x
  3. Step 3: Cross multiply
    2,910,431.08x = 4,016,515.90 × 1,621,271.12
  4. Step 4: Simplify right side
    2,910,431.08x = 6,511,861,231,690.81
  5. Step 5: Solve for x
    x = 6,511,861,231,690.81/2,910,431.08
  6. Step 6: Final answer
    x = 2,237,421.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.