Home / 433,210.18-649,815.27-285,431.62

Finding the Fourth Proportional to 433,210.18, 649,815.27 and 285,431.62

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Solution

The fourth proportional to 433,210.18, 649,815.27 and 285,431.62 is: 428,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,210.18 : 649,815.27 = 285,431.62 : x
  2. Step 2: Convert to fraction form
    433,210.18/649,815.27 = 285,431.62/x
  3. Step 3: Cross multiply
    433,210.18x = 649,815.27 × 285,431.62
  4. Step 4: Simplify right side
    433,210.18x = 185,477,825,216.84
  5. Step 5: Solve for x
    x = 185,477,825,216.84/433,210.18
  6. Step 6: Final answer
    x = 428,147.43

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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.