Finding the Fourth Proportional to 1,456,211.13, 2,009,640.14 and 811,635.94
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Solution
The fourth proportional to 1,456,211.13, 2,009,640.14 and 811,635.94 is: 1,120,095.93
Step by Step Solution
- Step 1: Write the proportion equation
1,456,211.13 : 2,009,640.14 = 811,635.94 : x - Step 2: Convert to fraction form
1,456,211.13/2,009,640.14 = 811,635.94/x - Step 3: Cross multiply
1,456,211.13x = 2,009,640.14 × 811,635.94 - Step 4: Simplify right side
1,456,211.13x = 1,631,096,164,090.63 - Step 5: Solve for x
x = 1,631,096,164,090.63/1,456,211.13 - Step 6: Final answer
x = 1,120,095.93
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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.