Finding the Fourth Proportional to 1,520,805.12, 2,098,669.41 and 867,416.37
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Solution
The fourth proportional to 1,520,805.12, 2,098,669.41 and 867,416.37 is: 1,197,010.83
Step by Step Solution
- Step 1: Write the proportion equation
1,520,805.12 : 2,098,669.41 = 867,416.37 : x - Step 2: Convert to fraction form
1,520,805.12/2,098,669.41 = 867,416.37/x - Step 3: Cross multiply
1,520,805.12x = 2,098,669.41 × 867,416.37 - Step 4: Simplify right side
1,520,805.12x = 1,820,420,201,452.24 - Step 5: Solve for x
x = 1,820,420,201,452.24/1,520,805.12 - Step 6: Final answer
x = 1,197,010.83
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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.