Finding the Fourth Proportional to 918,474.54, 1,377,237.17 and 412,602.99
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Solution
The fourth proportional to 918,474.54, 1,377,237.17 and 412,602.99 is: 618,691.26
Step by Step Solution
- Step 1: Write the proportion equation
918,474.54 : 1,377,237.17 = 412,602.99 : x - Step 2: Convert to fraction form
918,474.54/1,377,237.17 = 412,602.99/x - Step 3: Cross multiply
918,474.54x = 1,377,237.17 × 412,602.99 - Step 4: Simplify right side
918,474.54x = 568,252,172,218.12 - Step 5: Solve for x
x = 568,252,172,218.12/918,474.54 - Step 6: Final answer
x = 618,691.26
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1.5x scale
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.