Finding the Fourth Proportional to 2,979,728.36, 4,112,117.94 and 1,690,623.08
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Solution
The fourth proportional to 2,979,728.36, 4,112,117.94 and 1,690,623.08 is: 2,333,112.50
Step by Step Solution
- Step 1: Write the proportion equation
2,979,728.36 : 4,112,117.94 = 1,690,623.08 : x - Step 2: Convert to fraction form
2,979,728.36/4,112,117.94 = 1,690,623.08/x - Step 3: Cross multiply
2,979,728.36x = 4,112,117.94 × 1,690,623.08 - Step 4: Simplify right side
2,979,728.36x = 6,952,041,497,046.06 - Step 5: Solve for x
x = 6,952,041,497,046.06/2,979,728.36 - Step 6: Final answer
x = 2,333,112.50
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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.