Finding the Fourth Proportional to 1,261,067.79, 1,739,818.79 and 970,768.14
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Solution
The fourth proportional to 1,261,067.79, 1,739,818.79 and 970,768.14 is: 1,339,309.97
Step by Step Solution
- Step 1: Write the proportion equation
1,261,067.79 : 1,739,818.79 = 970,768.14 : x - Step 2: Convert to fraction form
1,261,067.79/1,739,818.79 = 970,768.14/x - Step 3: Cross multiply
1,261,067.79x = 1,739,818.79 × 970,768.14 - Step 4: Simplify right side
1,261,067.79x = 1,688,960,658,214.62 - Step 5: Solve for x
x = 1,688,960,658,214.62/1,261,067.79 - Step 6: Final answer
x = 1,339,309.97
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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.