Finding the Fourth Proportional to 3,056,701.06, 4,218,291.30 and 1,680,172.21
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Solution
The fourth proportional to 3,056,701.06, 4,218,291.30 and 1,680,172.21 is: 2,318,661.75
Step by Step Solution
- Step 1: Write the proportion equation
3,056,701.06 : 4,218,291.30 = 1,680,172.21 : x - Step 2: Convert to fraction form
3,056,701.06/4,218,291.30 = 1,680,172.21/x - Step 3: Cross multiply
3,056,701.06x = 4,218,291.30 × 1,680,172.21 - Step 4: Simplify right side
3,056,701.06x = 7,087,455,815,944.77 - Step 5: Solve for x
x = 7,087,455,815,944.77/3,056,701.06 - Step 6: Final answer
x = 2,318,661.75
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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.