Finding the Fourth Proportional to 1,262,448.96, 1,742,190.72 and 718,619.76
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Solution
The fourth proportional to 1,262,448.96, 1,742,190.72 and 718,619.76 is: 991,701.62
Step by Step Solution
- Step 1: Write the proportion equation
1,262,448.96 : 1,742,190.72 = 718,619.76 : x - Step 2: Convert to fraction form
1,262,448.96/1,742,190.72 = 718,619.76/x - Step 3: Cross multiply
1,262,448.96x = 1,742,190.72 × 718,619.76 - Step 4: Simplify right side
1,262,448.96x = 1,251,972,677,080.63 - Step 5: Solve for x
x = 1,251,972,677,080.63/1,262,448.96 - Step 6: Final answer
x = 991,701.62
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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.