Finding the Fourth Proportional to 905,035.14, 1,247,921.37 and 741,180.42
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Solution
The fourth proportional to 905,035.14, 1,247,921.37 and 741,180.42 is: 1,021,987.81
Step by Step Solution
- Step 1: Write the proportion equation
905,035.14 : 1,247,921.37 = 741,180.42 : x - Step 2: Convert to fraction form
905,035.14/1,247,921.37 = 741,180.42/x - Step 3: Cross multiply
905,035.14x = 1,247,921.37 × 741,180.42 - Step 4: Simplify right side
905,035.14x = 924,934,885,143.58 - Step 5: Solve for x
x = 924,934,885,143.58/905,035.14 - Step 6: Final answer
x = 1,021,987.81
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1.5x scale
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.