Finding the Fourth Proportional to 811,654.23, 1,120,068.08 and 449,078.09
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Solution
The fourth proportional to 811,654.23, 1,120,068.08 and 449,078.09 is: 619,719.59
Step by Step Solution
- Step 1: Write the proportion equation
811,654.23 : 1,120,068.08 = 449,078.09 : x - Step 2: Convert to fraction form
811,654.23/1,120,068.08 = 449,078.09/x - Step 3: Cross multiply
811,654.23x = 1,120,068.08 × 449,078.09 - Step 4: Simplify right side
811,654.23x = 502,998,026,190.64 - Step 5: Solve for x
x = 502,998,026,190.64/811,654.23 - Step 6: Final answer
x = 619,719.59
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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.