Finding the Fourth Proportional to 1,283,995.98, 1,771,970.19 and 711,036.18
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Solution
The fourth proportional to 1,283,995.98, 1,771,970.19 and 711,036.18 is: 981,260.79
Step by Step Solution
- Step 1: Write the proportion equation
1,283,995.98 : 1,771,970.19 = 711,036.18 : x - Step 2: Convert to fraction form
1,283,995.98/1,771,970.19 = 711,036.18/x - Step 3: Cross multiply
1,283,995.98x = 1,771,970.19 × 711,036.18 - Step 4: Simplify right side
1,283,995.98x = 1,259,934,914,971.47 - Step 5: Solve for x
x = 1,259,934,914,971.47/1,283,995.98 - Step 6: Final answer
x = 981,260.79
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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.