Finding the Fourth Proportional to 841,660.28, 1,161,498.86 and 479,107.62
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Solution
The fourth proportional to 841,660.28, 1,161,498.86 and 479,107.62 is: 661,172.88
Step by Step Solution
- Step 1: Write the proportion equation
841,660.28 : 1,161,498.86 = 479,107.62 : x - Step 2: Convert to fraction form
841,660.28/1,161,498.86 = 479,107.62/x - Step 3: Cross multiply
841,660.28x = 1,161,498.86 × 479,107.62 - Step 4: Simplify right side
841,660.28x = 556,482,952,051.78 - Step 5: Solve for x
x = 556,482,952,051.78/841,660.28 - Step 6: Final answer
x = 661,172.88
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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.