Finding the Fourth Proportional to 873,835.78, 1,205,868.97 and 486,651.09
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Solution
The fourth proportional to 873,835.78, 1,205,868.97 and 486,651.09 is: 671,564.91
Step by Step Solution
- Step 1: Write the proportion equation
873,835.78 : 1,205,868.97 = 486,651.09 : x - Step 2: Convert to fraction form
873,835.78/1,205,868.97 = 486,651.09/x - Step 3: Cross multiply
873,835.78x = 1,205,868.97 × 486,651.09 - Step 4: Simplify right side
873,835.78x = 586,837,447,431.05 - Step 5: Solve for x
x = 586,837,447,431.05/873,835.78 - Step 6: Final answer
x = 671,564.91
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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.