Finding the Fourth Proportional to 687,984.41, 1,031,940.16 and 214,615.55
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Solution
The fourth proportional to 687,984.41, 1,031,940.16 and 214,615.55 is: 321,911.95
Step by Step Solution
- Step 1: Write the proportion equation
687,984.41 : 1,031,940.16 = 214,615.55 : x - Step 2: Convert to fraction form
687,984.41/1,031,940.16 = 214,615.55/x - Step 3: Cross multiply
687,984.41x = 1,031,940.16 × 214,615.55 - Step 4: Simplify right side
687,984.41x = 221,470,405,005.49 - Step 5: Solve for x
x = 221,470,405,005.49/687,984.41 - Step 6: Final answer
x = 321,911.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.