Finding the Fourth Proportional to 3,181,742.40, 4,390,857.36 and 1,731,498.96
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Solution
The fourth proportional to 3,181,742.40, 4,390,857.36 and 1,731,498.96 is: 2,389,497.32
Step by Step Solution
- Step 1: Write the proportion equation
3,181,742.40 : 4,390,857.36 = 1,731,498.96 : x - Step 2: Convert to fraction form
3,181,742.40/4,390,857.36 = 1,731,498.96/x - Step 3: Cross multiply
3,181,742.40x = 4,390,857.36 × 1,731,498.96 - Step 4: Simplify right side
3,181,742.40x = 7,602,764,952,348.35 - Step 5: Solve for x
x = 7,602,764,952,348.35/3,181,742.40 - Step 6: Final answer
x = 2,389,497.32
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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.