Finding the Fourth Proportional to 2,128,239.03, 2,937,031.92 and 1,161,431.60
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Solution
The fourth proportional to 2,128,239.03, 2,937,031.92 and 1,161,431.60 is: 1,602,809.47
Step by Step Solution
- Step 1: Write the proportion equation
2,128,239.03 : 2,937,031.92 = 1,161,431.60 : x - Step 2: Convert to fraction form
2,128,239.03/2,937,031.92 = 1,161,431.60/x - Step 3: Cross multiply
2,128,239.03x = 2,937,031.92 × 1,161,431.60 - Step 4: Simplify right side
2,128,239.03x = 3,411,161,674,902.24 - Step 5: Solve for x
x = 3,411,161,674,902.24/2,128,239.03 - Step 6: Final answer
x = 1,602,809.47
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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.