Finding the Fourth Proportional to 542,107.18, 748,118.73 and 315,767.26
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Solution
The fourth proportional to 542,107.18, 748,118.73 and 315,767.26 is: 435,765.12
Step by Step Solution
- Step 1: Write the proportion equation
542,107.18 : 748,118.73 = 315,767.26 : x - Step 2: Convert to fraction form
542,107.18/748,118.73 = 315,767.26/x - Step 3: Cross multiply
542,107.18x = 748,118.73 × 315,767.26 - Step 4: Simplify right side
542,107.18x = 236,231,401,526.78 - Step 5: Solve for x
x = 236,231,401,526.78/542,107.18 - Step 6: Final answer
x = 435,765.12
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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.