Finding the Fourth Proportional to 3,115,315.50, 4,299,135.39 and 1,684,531.50
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Solution
The fourth proportional to 3,115,315.50, 4,299,135.39 and 1,684,531.50 is: 2,324,653.47
Step by Step Solution
- Step 1: Write the proportion equation
3,115,315.50 : 4,299,135.39 = 1,684,531.50 : x - Step 2: Convert to fraction form
3,115,315.50/4,299,135.39 = 1,684,531.50/x - Step 3: Cross multiply
3,115,315.50x = 4,299,135.39 × 1,684,531.50 - Step 4: Simplify right side
3,115,315.50x = 7,242,028,987,219.78 - Step 5: Solve for x
x = 7,242,028,987,219.78/3,115,315.50 - Step 6: Final answer
x = 2,324,653.47
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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.