Finding the Fourth Proportional to 1,274,981.24, 1,759,479.36 and 765,692.12
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Solution
The fourth proportional to 1,274,981.24, 1,759,479.36 and 765,692.12 is: 1,056,658.28
Step by Step Solution
- Step 1: Write the proportion equation
1,274,981.24 : 1,759,479.36 = 765,692.12 : x - Step 2: Convert to fraction form
1,274,981.24/1,759,479.36 = 765,692.12/x - Step 3: Cross multiply
1,274,981.24x = 1,759,479.36 × 765,692.12 - Step 4: Simplify right side
1,274,981.24x = 1,347,219,481,254.64 - Step 5: Solve for x
x = 1,347,219,481,254.64/1,274,981.24 - Step 6: Final answer
x = 1,056,658.28
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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.