Finding the Fourth Proportional to 1,657,680.10, 2,486,520.15 and 859,206.40
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Solution
The fourth proportional to 1,657,680.10, 2,486,520.15 and 859,206.40 is: 1,288,809.60
Step by Step Solution
- Step 1: Write the proportion equation
1,657,680.10 : 2,486,520.15 = 859,206.40 : x - Step 2: Convert to fraction form
1,657,680.10/2,486,520.15 = 859,206.40/x - Step 3: Cross multiply
1,657,680.10x = 2,486,520.15 × 859,206.40 - Step 4: Simplify right side
1,657,680.10x = 2,136,434,026,608.96 - Step 5: Solve for x
x = 2,136,434,026,608.96/1,657,680.10 - Step 6: Final answer
x = 1,288,809.60
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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.