Finding the Fourth Proportional to 529,781.74, 731,107.92 and 288,065.94
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Solution
The fourth proportional to 529,781.74, 731,107.92 and 288,065.94 is: 397,535.96
Step by Step Solution
- Step 1: Write the proportion equation
529,781.74 : 731,107.92 = 288,065.94 : x - Step 2: Convert to fraction form
529,781.74/731,107.92 = 288,065.94/x - Step 3: Cross multiply
529,781.74x = 731,107.92 × 288,065.94 - Step 4: Simplify right side
529,781.74x = 210,607,290,216.25 - Step 5: Solve for x
x = 210,607,290,216.25/529,781.74 - Step 6: Final answer
x = 397,535.96
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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.