Home / 2,621,686.46-3,932,741.90-728,428.10

Finding the Fourth Proportional to 2,621,686.46, 3,932,741.90 and 728,428.10

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Solution

The fourth proportional to 2,621,686.46, 3,932,741.90 and 728,428.10 is: 1,092,701.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,686.46 : 3,932,741.90 = 728,428.10 : x
  2. Step 2: Convert to fraction form
    2,621,686.46/3,932,741.90 = 728,428.10/x
  3. Step 3: Cross multiply
    2,621,686.46x = 3,932,741.90 × 728,428.10
  4. Step 4: Simplify right side
    2,621,686.46x = 2,864,719,692,164.75
  5. Step 5: Solve for x
    x = 2,864,719,692,164.75/2,621,686.46
  6. Step 6: Final answer
    x = 1,092,701.11

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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.