Finding the Fourth Proportional to 861,881.14, 1,292,821.68 and 270,905.14
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Solution
The fourth proportional to 861,881.14, 1,292,821.68 and 270,905.14 is: 406,357.70
Step by Step Solution
- Step 1: Write the proportion equation
861,881.14 : 1,292,821.68 = 270,905.14 : x - Step 2: Convert to fraction form
861,881.14/1,292,821.68 = 270,905.14/x - Step 3: Cross multiply
861,881.14x = 1,292,821.68 × 270,905.14 - Step 4: Simplify right side
861,881.14x = 350,232,038,215.44 - Step 5: Solve for x
x = 350,232,038,215.44/861,881.14 - Step 6: Final answer
x = 406,357.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.