Finding the Fourth Proportional to 665,658.74, 998,737.44 and 345,610.82
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Solution
The fourth proportional to 665,658.74, 998,737.44 and 345,610.82 is: 518,545.68
Step by Step Solution
- Step 1: Write the proportion equation
665,658.74 : 998,737.44 = 345,610.82 : x - Step 2: Convert to fraction form
665,658.74/998,737.44 = 345,610.82/x - Step 3: Cross multiply
665,658.74x = 998,737.44 × 345,610.82 - Step 4: Simplify right side
665,658.74x = 345,174,465,603.10 - Step 5: Solve for x
x = 345,174,465,603.10/665,658.74 - Step 6: Final answer
x = 518,545.68
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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.