Finding the Fourth Proportional to 3,192,338.76, 4,405,521.20 and 1,742,127.80
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Solution
The fourth proportional to 3,192,338.76, 4,405,521.20 and 1,742,127.80 is: 2,404,187.50
Step by Step Solution
- Step 1: Write the proportion equation
3,192,338.76 : 4,405,521.20 = 1,742,127.80 : x - Step 2: Convert to fraction form
3,192,338.76/4,405,521.20 = 1,742,127.80/x - Step 3: Cross multiply
3,192,338.76x = 4,405,521.20 × 1,742,127.80 - Step 4: Simplify right side
3,192,338.76x = 7,674,980,956,009.36 - Step 5: Solve for x
x = 7,674,980,956,009.36/3,192,338.76 - Step 6: Final answer
x = 2,404,187.50
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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.