Finding the Fourth Proportional to 1,544,376.12, 2,131,237.62 and 865,317.48
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Solution
The fourth proportional to 1,544,376.12, 2,131,237.62 and 865,317.48 is: 1,194,137.32
Step by Step Solution
- Step 1: Write the proportion equation
1,544,376.12 : 2,131,237.62 = 865,317.48 : x - Step 2: Convert to fraction form
1,544,376.12/2,131,237.62 = 865,317.48/x - Step 3: Cross multiply
1,544,376.12x = 2,131,237.62 × 865,317.48 - Step 4: Simplify right side
1,544,376.12x = 1,844,197,166,619.60 - Step 5: Solve for x
x = 1,844,197,166,619.60/1,544,376.12 - Step 6: Final answer
x = 1,194,137.32
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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.