Finding the Fourth Proportional to 2,640,071.70, 3,643,300.41 and 1,432,847.70
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Solution
The fourth proportional to 2,640,071.70, 3,643,300.41 and 1,432,847.70 is: 1,977,330.62
Step by Step Solution
- Step 1: Write the proportion equation
2,640,071.70 : 3,643,300.41 = 1,432,847.70 : x - Step 2: Convert to fraction form
2,640,071.70/3,643,300.41 = 1,432,847.70/x - Step 3: Cross multiply
2,640,071.70x = 3,643,300.41 × 1,432,847.70 - Step 4: Simplify right side
2,640,071.70x = 5,220,294,612,877.56 - Step 5: Solve for x
x = 5,220,294,612,877.56/2,640,071.70 - Step 6: Final answer
x = 1,977,330.62
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1.5x scale
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.