Finding the Fourth Proportional to 2,689,968.96, 4,029,264.72 and 2,175,426.18
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Solution
The fourth proportional to 2,689,968.96, 4,029,264.72 and 2,175,426.18 is: 3,258,538.70
Step by Step Solution
- Step 1: Write the proportion equation
2,689,968.96 : 4,029,264.72 = 2,175,426.18 : x - Step 2: Convert to fraction form
2,689,968.96/4,029,264.72 = 2,175,426.18/x - Step 3: Cross multiply
2,689,968.96x = 4,029,264.72 × 2,175,426.18 - Step 4: Simplify right side
2,689,968.96x = 8,765,367,958,038.37 - Step 5: Solve for x
x = 8,765,367,958,038.37/2,689,968.96 - Step 6: Final answer
x = 3,258,538.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.