Finding the Fourth Proportional to 1,059,115.47, 1,462,283.18 and 813,663.09
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Solution
The fourth proportional to 1,059,115.47, 1,462,283.18 and 813,663.09 is: 1,123,395.78
Step by Step Solution
- Step 1: Write the proportion equation
1,059,115.47 : 1,462,283.18 = 813,663.09 : x - Step 2: Convert to fraction form
1,059,115.47/1,462,283.18 = 813,663.09/x - Step 3: Cross multiply
1,059,115.47x = 1,462,283.18 × 813,663.09 - Step 4: Simplify right side
1,059,115.47x = 1,189,805,846,625.51 - Step 5: Solve for x
x = 1,189,805,846,625.51/1,059,115.47 - Step 6: Final answer
x = 1,123,395.78
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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.