Finding the Fourth Proportional to 2,166,497.97, 2,989,730.49 and 1,199,607.45
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Solution
The fourth proportional to 2,166,497.97, 2,989,730.49 and 1,199,607.45 is: 1,655,437.96
Step by Step Solution
- Step 1: Write the proportion equation
2,166,497.97 : 2,989,730.49 = 1,199,607.45 : x - Step 2: Convert to fraction form
2,166,497.97/2,989,730.49 = 1,199,607.45/x - Step 3: Cross multiply
2,166,497.97x = 2,989,730.49 × 1,199,607.45 - Step 4: Simplify right side
2,166,497.97x = 3,586,502,969,296.15 - Step 5: Solve for x
x = 3,586,502,969,296.15/2,166,497.97 - Step 6: Final answer
x = 1,655,437.96
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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.