Finding the Fourth Proportional to 1,603,643.86, 2,213,031.14 and 878,475.66
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Solution
The fourth proportional to 1,603,643.86, 2,213,031.14 and 878,475.66 is: 1,212,297.84
Step by Step Solution
- Step 1: Write the proportion equation
1,603,643.86 : 2,213,031.14 = 878,475.66 : x - Step 2: Convert to fraction form
1,603,643.86/2,213,031.14 = 878,475.66/x - Step 3: Cross multiply
1,603,643.86x = 2,213,031.14 × 878,475.66 - Step 4: Simplify right side
1,603,643.86x = 1,944,093,991,312.05 - Step 5: Solve for x
x = 1,944,093,991,312.05/1,603,643.86 - Step 6: Final answer
x = 1,212,297.84
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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.