Finding the Fourth Proportional to 1,262,422.21, 1,742,153.79 and 718,593.01
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Solution
The fourth proportional to 1,262,422.21, 1,742,153.79 and 718,593.01 is: 991,664.70
Step by Step Solution
- Step 1: Write the proportion equation
1,262,422.21 : 1,742,153.79 = 718,593.01 : x - Step 2: Convert to fraction form
1,262,422.21/1,742,153.79 = 718,593.01/x - Step 3: Cross multiply
1,262,422.21x = 1,742,153.79 × 718,593.01 - Step 4: Simplify right side
1,262,422.21x = 1,251,899,537,953.00 - Step 5: Solve for x
x = 1,251,899,537,953.00/1,262,422.21 - Step 6: Final answer
x = 991,664.70
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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.