Finding the Fourth Proportional to 3,187,721.36, 4,782,329.68 and 1,268,748.74
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Solution
The fourth proportional to 3,187,721.36, 4,782,329.68 and 1,268,748.74 is: 1,903,420.68
Step by Step Solution
- Step 1: Write the proportion equation
3,187,721.36 : 4,782,329.68 = 1,268,748.74 : x - Step 2: Convert to fraction form
3,187,721.36/4,782,329.68 = 1,268,748.74/x - Step 3: Cross multiply
3,187,721.36x = 4,782,329.68 × 1,268,748.74 - Step 4: Simplify right side
3,187,721.36x = 6,067,574,755,764.60 - Step 5: Solve for x
x = 6,067,574,755,764.60/3,187,721.36 - Step 6: Final answer
x = 1,903,420.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.