Finding the Fourth Proportional to 1,535,565, 2,119,759.20 and 991,965.84
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Solution
The fourth proportional to 1,535,565, 2,119,759.20 and 991,965.84 is: 1,369,351.81
Step by Step Solution
- Step 1: Write the proportion equation
1,535,565 : 2,119,759.20 = 991,965.84 : x - Step 2: Convert to fraction form
1,535,565/2,119,759.20 = 991,965.84/x - Step 3: Cross multiply
1,535,565x = 2,119,759.20 × 991,965.84 - Step 4: Simplify right side
1,535,565x = 2,102,728,715,425.73 - Step 5: Solve for x
x = 2,102,728,715,425.73/1,535,565 - Step 6: Final answer
x = 1,369,351.81
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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.