Finding the Fourth Proportional to 1,605,556.13, 2,215,734.68 and 880,431.77
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Solution
The fourth proportional to 1,605,556.13, 2,215,734.68 and 880,431.77 is: 1,215,032.71
Step by Step Solution
- Step 1: Write the proportion equation
1,605,556.13 : 2,215,734.68 = 880,431.77 : x - Step 2: Convert to fraction form
1,605,556.13/2,215,734.68 = 880,431.77/x - Step 3: Cross multiply
1,605,556.13x = 2,215,734.68 × 880,431.77 - Step 4: Simplify right side
1,605,556.13x = 1,950,803,213,903.20 - Step 5: Solve for x
x = 1,950,803,213,903.20/1,605,556.13 - Step 6: Final answer
x = 1,215,032.71
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1.5x scale
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.