Finding the Fourth Proportional to 1,640,343.60, 2,463,139.80 and 1,241,434.80
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Solution
The fourth proportional to 1,640,343.60, 2,463,139.80 and 1,241,434.80 is: 1,864,138.38
Step by Step Solution
- Step 1: Write the proportion equation
1,640,343.60 : 2,463,139.80 = 1,241,434.80 : x - Step 2: Convert to fraction form
1,640,343.60/2,463,139.80 = 1,241,434.80/x - Step 3: Cross multiply
1,640,343.60x = 2,463,139.80 × 1,241,434.80 - Step 4: Simplify right side
1,640,343.60x = 3,057,827,464,985.04 - Step 5: Solve for x
x = 3,057,827,464,985.04/1,640,343.60 - Step 6: Final answer
x = 1,864,138.38
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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.