Finding the Fourth Proportional to 1,251,138.42, 1,726,572.24 and 678,178.44
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Solution
The fourth proportional to 1,251,138.42, 1,726,572.24 and 678,178.44 is: 935,886.91
Step by Step Solution
- Step 1: Write the proportion equation
1,251,138.42 : 1,726,572.24 = 678,178.44 : x - Step 2: Convert to fraction form
1,251,138.42/1,726,572.24 = 678,178.44/x - Step 3: Cross multiply
1,251,138.42x = 1,726,572.24 × 678,178.44 - Step 4: Simplify right side
1,251,138.42x = 1,170,924,068,270.51 - Step 5: Solve for x
x = 1,170,924,068,270.51/1,251,138.42 - Step 6: Final answer
x = 935,886.91
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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.