Finding the Fourth Proportional to 1,677,621.18, 2,315,143.56 and 913,674.12
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Solution
The fourth proportional to 1,677,621.18, 2,315,143.56 and 913,674.12 is: 1,260,884.63
Step by Step Solution
- Step 1: Write the proportion equation
1,677,621.18 : 2,315,143.56 = 913,674.12 : x - Step 2: Convert to fraction form
1,677,621.18/2,315,143.56 = 913,674.12/x - Step 3: Cross multiply
1,677,621.18x = 2,315,143.56 × 913,674.12 - Step 4: Simplify right side
1,677,621.18x = 2,115,286,754,856.67 - Step 5: Solve for x
x = 2,115,286,754,856.67/1,677,621.18 - Step 6: Final answer
x = 1,260,884.63
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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.