Finding the Fourth Proportional to 819,056.05, 1,130,302.95 and 456,503.26
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Solution
The fourth proportional to 819,056.05, 1,130,302.95 and 456,503.26 is: 629,977.63
Step by Step Solution
- Step 1: Write the proportion equation
819,056.05 : 1,130,302.95 = 456,503.26 : x - Step 2: Convert to fraction form
819,056.05/1,130,302.95 = 456,503.26/x - Step 3: Cross multiply
819,056.05x = 1,130,302.95 × 456,503.26 - Step 4: Simplify right side
819,056.05x = 515,986,987,445.26 - Step 5: Solve for x
x = 515,986,987,445.26/819,056.05 - Step 6: Final answer
x = 629,977.63
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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.