Finding the Fourth Proportional to 692,997.48, 956,326.41 and 387,078.21
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Solution
The fourth proportional to 692,997.48, 956,326.41 and 387,078.21 is: 534,162.28
Step by Step Solution
- Step 1: Write the proportion equation
692,997.48 : 956,326.41 = 387,078.21 : x - Step 2: Convert to fraction form
692,997.48/956,326.41 = 387,078.21/x - Step 3: Cross multiply
692,997.48x = 956,326.41 × 387,078.21 - Step 4: Simplify right side
692,997.48x = 370,173,114,958.53 - Step 5: Solve for x
x = 370,173,114,958.53/692,997.48 - Step 6: Final answer
x = 534,162.28
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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.