Finding the Fourth Proportional to 2,116,848.24, 2,921,253.12 and 1,149,979.19
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Solution
The fourth proportional to 2,116,848.24, 2,921,253.12 and 1,149,979.19 is: 1,586,972.66
Step by Step Solution
- Step 1: Write the proportion equation
2,116,848.24 : 2,921,253.12 = 1,149,979.19 : x - Step 2: Convert to fraction form
2,116,848.24/2,921,253.12 = 1,149,979.19/x - Step 3: Cross multiply
2,116,848.24x = 2,921,253.12 × 1,149,979.19 - Step 4: Simplify right side
2,116,848.24x = 3,359,380,282,116.31 - Step 5: Solve for x
x = 3,359,380,282,116.31/2,116,848.24 - Step 6: Final answer
x = 1,586,972.66
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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.