Finding the Fourth Proportional to 1,283,863.76, 1,771,710.35 and 710,891.63
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Solution
The fourth proportional to 1,283,863.76, 1,771,710.35 and 710,891.63 is: 981,018.47
Step by Step Solution
- Step 1: Write the proportion equation
1,283,863.76 : 1,771,710.35 = 710,891.63 : x - Step 2: Convert to fraction form
1,283,863.76/1,771,710.35 = 710,891.63/x - Step 3: Cross multiply
1,283,863.76x = 1,771,710.35 × 710,891.63 - Step 4: Simplify right side
1,283,863.76x = 1,259,494,056,829.04 - Step 5: Solve for x
x = 1,259,494,056,829.04/1,283,863.76 - Step 6: Final answer
x = 981,018.47
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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.