Finding the Fourth Proportional to 644,330.50, 889,124.04 and 372,416.00
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Solution
The fourth proportional to 644,330.50, 889,124.04 and 372,416.00 is: 513,903.99
Step by Step Solution
- Step 1: Write the proportion equation
644,330.50 : 889,124.04 = 372,416.00 : x - Step 2: Convert to fraction form
644,330.50/889,124.04 = 372,416.00/x - Step 3: Cross multiply
644,330.50x = 889,124.04 × 372,416.00 - Step 4: Simplify right side
644,330.50x = 331,124,014,035.02 - Step 5: Solve for x
x = 331,124,014,035.02/644,330.50 - Step 6: Final answer
x = 513,903.99
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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.