Finding the Fourth Proportional to 918,474.77, 1,377,237.50 and 412,603.21
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Solution
The fourth proportional to 918,474.77, 1,377,237.50 and 412,603.21 is: 618,691.58
Step by Step Solution
- Step 1: Write the proportion equation
918,474.77 : 1,377,237.50 = 412,603.21 : x - Step 2: Convert to fraction form
918,474.77/1,377,237.50 = 412,603.21/x - Step 3: Cross multiply
918,474.77x = 1,377,237.50 × 412,603.21 - Step 4: Simplify right side
918,474.77x = 568,252,607,926.27 - Step 5: Solve for x
x = 568,252,607,926.27/918,474.77 - Step 6: Final answer
x = 618,691.58
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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.