Finding the Fourth Proportional to 942,813.68, 1,414,396.56 and 312,171.44
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Solution
The fourth proportional to 942,813.68, 1,414,396.56 and 312,171.44 is: 468,315.45
Step by Step Solution
- Step 1: Write the proportion equation
942,813.68 : 1,414,396.56 = 312,171.44 : x - Step 2: Convert to fraction form
942,813.68/1,414,396.56 = 312,171.44/x - Step 3: Cross multiply
942,813.68x = 1,414,396.56 × 312,171.44 - Step 4: Simplify right side
942,813.68x = 441,534,210,866.25 - Step 5: Solve for x
x = 441,534,210,866.25/942,813.68 - Step 6: Final answer
x = 468,315.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.