Finding the Fourth Proportional to 2,628,447.12, 3,943,156.68 and 831,782.88
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Solution
The fourth proportional to 2,628,447.12, 3,943,156.68 and 831,782.88 is: 1,247,828.12
Step by Step Solution
- Step 1: Write the proportion equation
2,628,447.12 : 3,943,156.68 = 831,782.88 : x - Step 2: Convert to fraction form
2,628,447.12/3,943,156.68 = 831,782.88/x - Step 3: Cross multiply
2,628,447.12x = 3,943,156.68 × 831,782.88 - Step 4: Simplify right side
2,628,447.12x = 3,279,850,219,581.64 - Step 5: Solve for x
x = 3,279,850,219,581.64/2,628,447.12 - Step 6: Final answer
x = 1,247,828.12
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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.