Finding the Fourth Proportional to 2,913,538.44, 4,020,976.98 and 1,690,218.12
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Solution
The fourth proportional to 2,913,538.44, 4,020,976.98 and 1,690,218.12 is: 2,332,671.52
Step by Step Solution
- Step 1: Write the proportion equation
2,913,538.44 : 4,020,976.98 = 1,690,218.12 : x - Step 2: Convert to fraction form
2,913,538.44/4,020,976.98 = 1,690,218.12/x - Step 3: Cross multiply
2,913,538.44x = 4,020,976.98 × 1,690,218.12 - Step 4: Simplify right side
2,913,538.44x = 6,796,328,151,698.88 - Step 5: Solve for x
x = 6,796,328,151,698.88/2,913,538.44 - Step 6: Final answer
x = 2,332,671.52
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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.