Home / 698,885.20-1,047,809.40-299,198.80

Finding the Fourth Proportional to 698,885.20, 1,047,809.40 and 299,198.80

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Solution

The fourth proportional to 698,885.20, 1,047,809.40 and 299,198.80 is: 448,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,885.20 : 1,047,809.40 = 299,198.80 : x
  2. Step 2: Convert to fraction form
    698,885.20/1,047,809.40 = 299,198.80/x
  3. Step 3: Cross multiply
    698,885.20x = 1,047,809.40 × 299,198.80
  4. Step 4: Simplify right side
    698,885.20x = 313,503,315,108.72
  5. Step 5: Solve for x
    x = 313,503,315,108.72/698,885.20
  6. Step 6: Final answer
    x = 448,576.27

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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.