Finding the Fourth Proportional to 529,480.05, 730,688.14 and 287,762.65
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Solution
The fourth proportional to 529,480.05, 730,688.14 and 287,762.65 is: 397,115.54
Step by Step Solution
- Step 1: Write the proportion equation
529,480.05 : 730,688.14 = 287,762.65 : x - Step 2: Convert to fraction form
529,480.05/730,688.14 = 287,762.65/x - Step 3: Cross multiply
529,480.05x = 730,688.14 × 287,762.65 - Step 4: Simplify right side
529,480.05x = 210,264,755,489.97 - Step 5: Solve for x
x = 210,264,755,489.97/529,480.05 - Step 6: Final answer
x = 397,115.54
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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.