Finding the Fourth Proportional to 528,553.09, 729,403.74 and 286,835.68
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Solution
The fourth proportional to 528,553.09, 729,403.74 and 286,835.68 is: 395,833.50
Step by Step Solution
- Step 1: Write the proportion equation
528,553.09 : 729,403.74 = 286,835.68 : x - Step 2: Convert to fraction form
528,553.09/729,403.74 = 286,835.68/x - Step 3: Cross multiply
528,553.09x = 729,403.74 × 286,835.68 - Step 4: Simplify right side
528,553.09x = 209,219,017,757.44 - Step 5: Solve for x
x = 209,219,017,757.44/528,553.09 - Step 6: Final answer
x = 395,833.50
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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.