Finding the Fourth Proportional to 791,316.48, 1,091,991.36 and 451,784.70
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Solution
The fourth proportional to 791,316.48, 1,091,991.36 and 451,784.70 is: 623,448.39
Step by Step Solution
- Step 1: Write the proportion equation
791,316.48 : 1,091,991.36 = 451,784.70 : x - Step 2: Convert to fraction form
791,316.48/1,091,991.36 = 451,784.70/x - Step 3: Cross multiply
791,316.48x = 1,091,991.36 × 451,784.70 - Step 4: Simplify right side
791,316.48x = 493,344,988,980.19 - Step 5: Solve for x
x = 493,344,988,980.19/791,316.48 - Step 6: Final answer
x = 623,448.39
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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.