Finding the Fourth Proportional to 720,887.04, 1,081,929.60 and 384,295.68
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Solution
The fourth proportional to 720,887.04, 1,081,929.60 and 384,295.68 is: 576,762.86
Step by Step Solution
- Step 1: Write the proportion equation
720,887.04 : 1,081,929.60 = 384,295.68 : x - Step 2: Convert to fraction form
720,887.04/1,081,929.60 = 384,295.68/x - Step 3: Cross multiply
720,887.04x = 1,081,929.60 × 384,295.68 - Step 4: Simplify right side
720,887.04x = 415,780,871,344.13 - Step 5: Solve for x
x = 415,780,871,344.13/720,887.04 - Step 6: Final answer
x = 576,762.86
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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.