Finding the Fourth Proportional to 1,286,551.47, 1,775,653.62 and 713,776.17
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Solution
The fourth proportional to 1,286,551.47, 1,775,653.62 and 713,776.17 is: 985,129.06
Step by Step Solution
- Step 1: Write the proportion equation
1,286,551.47 : 1,775,653.62 = 713,776.17 : x - Step 2: Convert to fraction form
1,286,551.47/1,775,653.62 = 713,776.17/x - Step 3: Cross multiply
1,286,551.47x = 1,775,653.62 × 713,776.17 - Step 4: Simplify right side
1,286,551.47x = 1,267,419,240,130.24 - Step 5: Solve for x
x = 1,267,419,240,130.24/1,286,551.47 - Step 6: Final answer
x = 985,129.06
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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.