Finding the Fourth Proportional to 1,605,347.67, 2,215,448.99 and 960,643.77
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Solution
The fourth proportional to 1,605,347.67, 2,215,448.99 and 960,643.77 is: 1,325,729.81
Step by Step Solution
- Step 1: Write the proportion equation
1,605,347.67 : 2,215,448.99 = 960,643.77 : x - Step 2: Convert to fraction form
1,605,347.67/2,215,448.99 = 960,643.77/x - Step 3: Cross multiply
1,605,347.67x = 2,215,448.99 × 960,643.77 - Step 4: Simplify right side
1,605,347.67x = 2,128,257,260,487.55 - Step 5: Solve for x
x = 2,128,257,260,487.55/1,605,347.67 - Step 6: Final answer
x = 1,325,729.81
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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.