Finding the Fourth Proportional to 1,539,879.37, 2,124,972.57 and 851,506.54
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Solution
The fourth proportional to 1,539,879.37, 2,124,972.57 and 851,506.54 is: 1,175,045.32
Step by Step Solution
- Step 1: Write the proportion equation
1,539,879.37 : 2,124,972.57 = 851,506.54 : x - Step 2: Convert to fraction form
1,539,879.37/2,124,972.57 = 851,506.54/x - Step 3: Cross multiply
1,539,879.37x = 2,124,972.57 × 851,506.54 - Step 4: Simplify right side
1,539,879.37x = 1,809,428,040,675.61 - Step 5: Solve for x
x = 1,809,428,040,675.61/1,539,879.37 - Step 6: Final answer
x = 1,175,045.32
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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.