Finding the Fourth Proportional to 815,828.85, 1,125,862.57 and 448,328.84
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Solution
The fourth proportional to 815,828.85, 1,125,862.57 and 448,328.84 is: 618,704.10
Step by Step Solution
- Step 1: Write the proportion equation
815,828.85 : 1,125,862.57 = 448,328.84 : x - Step 2: Convert to fraction form
815,828.85/1,125,862.57 = 448,328.84/x - Step 3: Cross multiply
815,828.85x = 1,125,862.57 × 448,328.84 - Step 4: Simplify right side
815,828.85x = 504,756,653,257.38 - Step 5: Solve for x
x = 504,756,653,257.38/815,828.85 - Step 6: Final answer
x = 618,704.10
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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.