Finding the Fourth Proportional to 1,283,836.21, 1,771,672.32 and 710,864.08
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Solution
The fourth proportional to 1,283,836.21, 1,771,672.32 and 710,864.08 is: 980,980.45
Step by Step Solution
- Step 1: Write the proportion equation
1,283,836.21 : 1,771,672.32 = 710,864.08 : x - Step 2: Convert to fraction form
1,283,836.21/1,771,672.32 = 710,864.08/x - Step 3: Cross multiply
1,283,836.21x = 1,771,672.32 × 710,864.08 - Step 4: Simplify right side
1,283,836.21x = 1,259,418,221,354.05 - Step 5: Solve for x
x = 1,259,418,221,354.05/1,283,836.21 - Step 6: Final answer
x = 980,980.45
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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.