Finding the Fourth Proportional to 1,397,536.75, 1,928,589.03 and 785,692.18
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Solution
The fourth proportional to 1,397,536.75, 1,928,589.03 and 785,692.18 is: 1,084,248.64
Step by Step Solution
- Step 1: Write the proportion equation
1,397,536.75 : 1,928,589.03 = 785,692.18 : x - Step 2: Convert to fraction form
1,397,536.75/1,928,589.03 = 785,692.18/x - Step 3: Cross multiply
1,397,536.75x = 1,928,589.03 × 785,692.18 - Step 4: Simplify right side
1,397,536.75x = 1,515,277,314,483.31 - Step 5: Solve for x
x = 1,515,277,314,483.31/1,397,536.75 - Step 6: Final answer
x = 1,084,248.64
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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.