Finding the Fourth Proportional to 489,696.84, 675,329.81 and 326,447.01
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Solution
The fourth proportional to 489,696.84, 675,329.81 and 326,447.01 is: 450,195.67
Step by Step Solution
- Step 1: Write the proportion equation
489,696.84 : 675,329.81 = 326,447.01 : x - Step 2: Convert to fraction form
489,696.84/675,329.81 = 326,447.01/x - Step 3: Cross multiply
489,696.84x = 675,329.81 × 326,447.01 - Step 4: Simplify right side
489,696.84x = 220,459,395,606.13 - Step 5: Solve for x
x = 220,459,395,606.13/489,696.84 - Step 6: Final answer
x = 450,195.67
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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.