Finding the Fourth Proportional to 791,405.36, 1,091,654.17 and 646,421.84
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Solution
The fourth proportional to 791,405.36, 1,091,654.17 and 646,421.84 is: 891,665.80
Step by Step Solution
- Step 1: Write the proportion equation
791,405.36 : 1,091,654.17 = 646,421.84 : x - Step 2: Convert to fraction form
791,405.36/1,091,654.17 = 646,421.84/x - Step 3: Cross multiply
791,405.36x = 1,091,654.17 × 646,421.84 - Step 4: Simplify right side
791,405.36x = 705,669,090,140.75 - Step 5: Solve for x
x = 705,669,090,140.75/791,405.36 - Step 6: Final answer
x = 891,665.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.