Home / 869,623.30-1,303,786.95-449,200.90

Finding the Fourth Proportional to 869,623.30, 1,303,786.95 and 449,200.90

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Solution

The fourth proportional to 869,623.30, 1,303,786.95 and 449,200.90 is: 673,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,623.30 : 1,303,786.95 = 449,200.90 : x
  2. Step 2: Convert to fraction form
    869,623.30/1,303,786.95 = 449,200.90/x
  3. Step 3: Cross multiply
    869,623.30x = 1,303,786.95 × 449,200.90
  4. Step 4: Simplify right side
    869,623.30x = 585,662,271,348.26
  5. Step 5: Solve for x
    x = 585,662,271,348.26/869,623.30
  6. Step 6: Final answer
    x = 673,466.63

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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.