Finding the Fourth Proportional to 643,751.84, 965,623.92 and 350,130.08
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Solution
The fourth proportional to 643,751.84, 965,623.92 and 350,130.08 is: 525,193.03
Step by Step Solution
- Step 1: Write the proportion equation
643,751.84 : 965,623.92 = 350,130.08 : x - Step 2: Convert to fraction form
643,751.84/965,623.92 = 350,130.08/x - Step 3: Cross multiply
643,751.84x = 965,623.92 × 350,130.08 - Step 4: Simplify right side
643,751.84x = 338,093,980,359.51 - Step 5: Solve for x
x = 338,093,980,359.51/643,751.84 - Step 6: Final answer
x = 525,193.03
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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.