Finding the Fourth Proportional to 818,966.15, 1,130,174.36 and 456,382.05
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Solution
The fourth proportional to 818,966.15, 1,130,174.36 and 456,382.05 is: 629,807.82
Step by Step Solution
- Step 1: Write the proportion equation
818,966.15 : 1,130,174.36 = 456,382.05 : x - Step 2: Convert to fraction form
818,966.15/1,130,174.36 = 456,382.05/x - Step 3: Cross multiply
818,966.15x = 1,130,174.36 × 456,382.05 - Step 4: Simplify right side
818,966.15x = 515,791,285,623.37 - Step 5: Solve for x
x = 515,791,285,623.37/818,966.15 - Step 6: Final answer
x = 629,807.82
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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.