Home / 647,890.40-972,321.60-332,184.80

Finding the Fourth Proportional to 647,890.40, 972,321.60 and 332,184.80

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Solution

The fourth proportional to 647,890.40, 972,321.60 and 332,184.80 is: 498,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,890.40 : 972,321.60 = 332,184.80 : x
  2. Step 2: Convert to fraction form
    647,890.40/972,321.60 = 332,184.80/x
  3. Step 3: Cross multiply
    647,890.40x = 972,321.60 × 332,184.80
  4. Step 4: Simplify right side
    647,890.40x = 322,990,456,231.68
  5. Step 5: Solve for x
    x = 322,990,456,231.68/647,890.40
  6. Step 6: Final answer
    x = 498,526.38

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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.