Finding the Fourth Proportional to 975,921.63, 1,461,241.63 and 690,436.12
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Solution
The fourth proportional to 975,921.63, 1,461,241.63 and 690,436.12 is: 1,033,785.88
Step by Step Solution
- Step 1: Write the proportion equation
975,921.63 : 1,461,241.63 = 690,436.12 : x - Step 2: Convert to fraction form
975,921.63/1,461,241.63 = 690,436.12/x - Step 3: Cross multiply
975,921.63x = 1,461,241.63 × 690,436.12 - Step 4: Simplify right side
975,921.63x = 1,008,894,001,399.68 - Step 5: Solve for x
x = 1,008,894,001,399.68/975,921.63 - Step 6: Final answer
x = 1,033,785.88
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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.