Finding the Fourth Proportional to 1,226,643.62, 1,692,767.97 and 682,767.77
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Solution
The fourth proportional to 1,226,643.62, 1,692,767.97 and 682,767.77 is: 942,219.39
Step by Step Solution
- Step 1: Write the proportion equation
1,226,643.62 : 1,692,767.97 = 682,767.77 : x - Step 2: Convert to fraction form
1,226,643.62/1,692,767.97 = 682,767.77/x - Step 3: Cross multiply
1,226,643.62x = 1,692,767.97 × 682,767.77 - Step 4: Simplify right side
1,226,643.62x = 1,155,767,403,540.49 - Step 5: Solve for x
x = 1,155,767,403,540.49/1,226,643.62 - Step 6: Final answer
x = 942,219.39
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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.