Finding the Fourth Proportional to 640,400.80, 959,218.80 and 529,808.80
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Solution
The fourth proportional to 640,400.80, 959,218.80 and 529,808.80 is: 793,569.53
Step by Step Solution
- Step 1: Write the proportion equation
640,400.80 : 959,218.80 = 529,808.80 : x - Step 2: Convert to fraction form
640,400.80/959,218.80 = 529,808.80/x - Step 3: Cross multiply
640,400.80x = 959,218.80 × 529,808.80 - Step 4: Simplify right side
640,400.80x = 508,202,561,365.44 - Step 5: Solve for x
x = 508,202,561,365.44/640,400.80 - Step 6: Final answer
x = 793,569.53
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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.