Finding the Fourth Proportional to 620,403.05, 930,669.30 and 171,123.99
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Solution
The fourth proportional to 620,403.05, 930,669.30 and 171,123.99 is: 256,703.84
Step by Step Solution
- Step 1: Write the proportion equation
620,403.05 : 930,669.30 = 171,123.99 : x - Step 2: Convert to fraction form
620,403.05/930,669.30 = 171,123.99/x - Step 3: Cross multiply
620,403.05x = 930,669.30 × 171,123.99 - Step 4: Simplify right side
620,403.05x = 159,259,843,986.51 - Step 5: Solve for x
x = 159,259,843,986.51/620,403.05 - Step 6: Final answer
x = 256,703.84
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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.