Finding the Fourth Proportional to 690,173.58, 952,193.04 and 399,626.58
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Solution
The fourth proportional to 690,173.58, 952,193.04 and 399,626.58 is: 551,341.95
Step by Step Solution
- Step 1: Write the proportion equation
690,173.58 : 952,193.04 = 399,626.58 : x - Step 2: Convert to fraction form
690,173.58/952,193.04 = 399,626.58/x - Step 3: Cross multiply
690,173.58x = 952,193.04 × 399,626.58 - Step 4: Simplify right side
690,173.58x = 380,521,648,075.00 - Step 5: Solve for x
x = 380,521,648,075.00/690,173.58 - Step 6: Final answer
x = 551,341.95
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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.