Home / 469,269.24-647,421.84-308,211.54

Finding the Fourth Proportional to 469,269.24, 647,421.84 and 308,211.54

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Solution

The fourth proportional to 469,269.24, 647,421.84 and 308,211.54 is: 425,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,269.24 : 647,421.84 = 308,211.54 : x
  2. Step 2: Convert to fraction form
    469,269.24/647,421.84 = 308,211.54/x
  3. Step 3: Cross multiply
    469,269.24x = 647,421.84 × 308,211.54
  4. Step 4: Simplify right side
    469,269.24x = 199,542,882,336.03
  5. Step 5: Solve for x
    x = 199,542,882,336.03/469,269.24
  6. Step 6: Final answer
    x = 425,220.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.