Finding the Fourth Proportional to 720,305.40, 1,081,136.07 and 365,574
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Solution
The fourth proportional to 720,305.40, 1,081,136.07 and 365,574 is: 548,705.09
Step by Step Solution
- Step 1: Write the proportion equation
720,305.40 : 1,081,136.07 = 365,574 : x - Step 2: Convert to fraction form
720,305.40/1,081,136.07 = 365,574/x - Step 3: Cross multiply
720,305.40x = 1,081,136.07 × 365,574 - Step 4: Simplify right side
720,305.40x = 395,235,237,654.18 - Step 5: Solve for x
x = 395,235,237,654.18/720,305.40 - Step 6: Final answer
x = 548,705.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.