Finding the Fourth Proportional to 891,383.12, 1,336,943.40 and 292,407.56
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Solution
The fourth proportional to 891,383.12, 1,336,943.40 and 292,407.56 is: 438,568.28
Step by Step Solution
- Step 1: Write the proportion equation
891,383.12 : 1,336,943.40 = 292,407.56 : x - Step 2: Convert to fraction form
891,383.12/1,336,943.40 = 292,407.56/x - Step 3: Cross multiply
891,383.12x = 1,336,943.40 × 292,407.56 - Step 4: Simplify right side
891,383.12x = 390,932,357,452.10 - Step 5: Solve for x
x = 390,932,357,452.10/891,383.12 - Step 6: Final answer
x = 438,568.28
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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.