Finding the Fourth Proportional to 2,660,971.80, 3,671,099.10 and 1,640,605.08
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Solution
The fourth proportional to 2,660,971.80, 3,671,099.10 and 1,640,605.08 is: 2,263,392.58
Step by Step Solution
- Step 1: Write the proportion equation
2,660,971.80 : 3,671,099.10 = 1,640,605.08 : x - Step 2: Convert to fraction form
2,660,971.80/3,671,099.10 = 1,640,605.08/x - Step 3: Cross multiply
2,660,971.80x = 3,671,099.10 × 1,640,605.08 - Step 4: Simplify right side
2,660,971.80x = 6,022,823,832,643.43 - Step 5: Solve for x
x = 6,022,823,832,643.43/2,660,971.80 - Step 6: Final answer
x = 2,263,392.58
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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.