Finding the Fourth Proportional to 643,588.99, 965,539.56 and 194,283.01
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Solution
The fourth proportional to 643,588.99, 965,539.56 and 194,283.01 is: 291,471.63
Step by Step Solution
- Step 1: Write the proportion equation
643,588.99 : 965,539.56 = 194,283.01 : x - Step 2: Convert to fraction form
643,588.99/965,539.56 = 194,283.01/x - Step 3: Cross multiply
643,588.99x = 965,539.56 × 194,283.01 - Step 4: Simplify right side
643,588.99x = 187,587,931,990.88 - Step 5: Solve for x
x = 187,587,931,990.88/643,588.99 - Step 6: Final answer
x = 291,471.63
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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.