Home / 3,219,866.40-4,829,964.98-823,731.70

Finding the Fourth Proportional to 3,219,866.40, 4,829,964.98 and 823,731.70

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Solution

The fourth proportional to 3,219,866.40, 4,829,964.98 and 823,731.70 is: 1,235,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,866.40 : 4,829,964.98 = 823,731.70 : x
  2. Step 2: Convert to fraction form
    3,219,866.40/4,829,964.98 = 823,731.70/x
  3. Step 3: Cross multiply
    3,219,866.40x = 4,829,964.98 × 823,731.70
  4. Step 4: Simplify right side
    3,219,866.40x = 3,978,595,263,915.87
  5. Step 5: Solve for x
    x = 3,978,595,263,915.87/3,219,866.40
  6. Step 6: Final answer
    x = 1,235,639.86

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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.