Home / 2,989,217.21-4,484,576.81-859,305.20

Finding the Fourth Proportional to 2,989,217.21, 4,484,576.81 and 859,305.20

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Solution

The fourth proportional to 2,989,217.21, 4,484,576.81 and 859,305.20 is: 1,289,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,217.21 : 4,484,576.81 = 859,305.20 : x
  2. Step 2: Convert to fraction form
    2,989,217.21/4,484,576.81 = 859,305.20/x
  3. Step 3: Cross multiply
    2,989,217.21x = 4,484,576.81 × 859,305.20
  4. Step 4: Simplify right side
    2,989,217.21x = 3,853,620,145,913.00
  5. Step 5: Solve for x
    x = 3,853,620,145,913.00/2,989,217.21
  6. Step 6: Final answer
    x = 1,289,173.68

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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.