Home / 439,763.20-659,644.80-298,045.60

Finding the Fourth Proportional to 439,763.20, 659,644.80 and 298,045.60

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Solution

The fourth proportional to 439,763.20, 659,644.80 and 298,045.60 is: 447,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,763.20 : 659,644.80 = 298,045.60 : x
  2. Step 2: Convert to fraction form
    439,763.20/659,644.80 = 298,045.60/x
  3. Step 3: Cross multiply
    439,763.20x = 659,644.80 × 298,045.60
  4. Step 4: Simplify right side
    439,763.20x = 196,604,230,202.88
  5. Step 5: Solve for x
    x = 196,604,230,202.88/439,763.20
  6. Step 6: Final answer
    x = 447,068.40

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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.