Finding the Fourth Proportional to 2,124,617.78, 2,931,976.27 and 1,157,748.07
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Solution
The fourth proportional to 2,124,617.78, 2,931,976.27 and 1,157,748.07 is: 1,597,694.37
Step by Step Solution
- Step 1: Write the proportion equation
2,124,617.78 : 2,931,976.27 = 1,157,748.07 : x - Step 2: Convert to fraction form
2,124,617.78/2,931,976.27 = 1,157,748.07/x - Step 3: Cross multiply
2,124,617.78x = 2,931,976.27 × 1,157,748.07 - Step 4: Simplify right side
2,124,617.78x = 3,394,489,853,218.42 - Step 5: Solve for x
x = 3,394,489,853,218.42/2,124,617.78 - Step 6: Final answer
x = 1,597,694.37
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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.