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Finding the Fourth Proportional to 665,199.40, 996,704.70 and 384,226.60

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Solution

The fourth proportional to 665,199.40, 996,704.70 and 384,226.60 is: 575,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,199.40 : 996,704.70 = 384,226.60 : x
  2. Step 2: Convert to fraction form
    665,199.40/996,704.70 = 384,226.60/x
  3. Step 3: Cross multiply
    665,199.40x = 996,704.70 × 384,226.60
  4. Step 4: Simplify right side
    665,199.40x = 382,960,458,085.02
  5. Step 5: Solve for x
    x = 382,960,458,085.02/665,199.40
  6. Step 6: Final answer
    x = 575,707.76

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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.