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Finding the Fourth Proportional to 481,567.30, 721,573.35 and 303,756.10

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Solution

The fourth proportional to 481,567.30, 721,573.35 and 303,756.10 is: 455,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,567.30 : 721,573.35 = 303,756.10 : x
  2. Step 2: Convert to fraction form
    481,567.30/721,573.35 = 303,756.10/x
  3. Step 3: Cross multiply
    481,567.30x = 721,573.35 × 303,756.10
  4. Step 4: Simplify right side
    481,567.30x = 219,182,306,659.94
  5. Step 5: Solve for x
    x = 219,182,306,659.94/481,567.30
  6. Step 6: Final answer
    x = 455,143.67

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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.