Finding the Fourth Proportional to 1,397,386.20, 2,096,079.30 and 511,267.80
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Solution
The fourth proportional to 1,397,386.20, 2,096,079.30 and 511,267.80 is: 766,901.70
Step by Step Solution
- Step 1: Write the proportion equation
1,397,386.20 : 2,096,079.30 = 511,267.80 : x - Step 2: Convert to fraction form
1,397,386.20/2,096,079.30 = 511,267.80/x - Step 3: Cross multiply
1,397,386.20x = 2,096,079.30 × 511,267.80 - Step 4: Simplify right side
1,397,386.20x = 1,071,657,852,336.54 - Step 5: Solve for x
x = 1,071,657,852,336.54/1,397,386.20 - Step 6: Final answer
x = 766,901.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.