Finding the Fourth Proportional to 1,283,721.24, 1,771,590.68 and 710,761.40
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Solution
The fourth proportional to 1,283,721.24, 1,771,590.68 and 710,761.40 is: 980,881.39
Step by Step Solution
- Step 1: Write the proportion equation
1,283,721.24 : 1,771,590.68 = 710,761.40 : x - Step 2: Convert to fraction form
1,283,721.24/1,771,590.68 = 710,761.40/x - Step 3: Cross multiply
1,283,721.24x = 1,771,590.68 × 710,761.40 - Step 4: Simplify right side
1,283,721.24x = 1,259,178,271,943.75 - Step 5: Solve for x
x = 1,259,178,271,943.75/1,283,721.24 - Step 6: Final answer
x = 980,881.39
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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.