Finding the Fourth Proportional to 486,758.97, 671,291.01 and 405,356.77
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Solution
The fourth proportional to 486,758.97, 671,291.01 and 405,356.77 is: 559,028.95
Step by Step Solution
- Step 1: Write the proportion equation
486,758.97 : 671,291.01 = 405,356.77 : x - Step 2: Convert to fraction form
486,758.97/671,291.01 = 405,356.77/x - Step 3: Cross multiply
486,758.97x = 671,291.01 × 405,356.77 - Step 4: Simplify right side
486,758.97x = 272,112,356,382.75 - Step 5: Solve for x
x = 272,112,356,382.75/486,758.97 - Step 6: Final answer
x = 559,028.95
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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.