Finding the Fourth Proportional to 1,240,153.64, 1,711,583.16 and 688,992.92
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Solution
The fourth proportional to 1,240,153.64, 1,711,583.16 and 688,992.92 is: 950,905.31
Step by Step Solution
- Step 1: Write the proportion equation
1,240,153.64 : 1,711,583.16 = 688,992.92 : x - Step 2: Convert to fraction form
1,240,153.64/1,711,583.16 = 688,992.92/x - Step 3: Cross multiply
1,240,153.64x = 1,711,583.16 × 688,992.92 - Step 4: Simplify right side
1,240,153.64x = 1,179,268,679,231.23 - Step 5: Solve for x
x = 1,179,268,679,231.23/1,240,153.64 - Step 6: Final answer
x = 950,905.31
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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.