Finding the Fourth Proportional to 487,294.24, 672,431.91 and 283,330.69
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Solution
The fourth proportional to 487,294.24, 672,431.91 and 283,330.69 is: 390,976.49
Step by Step Solution
- Step 1: Write the proportion equation
487,294.24 : 672,431.91 = 283,330.69 : x - Step 2: Convert to fraction form
487,294.24/672,431.91 = 283,330.69/x - Step 3: Cross multiply
487,294.24x = 672,431.91 × 283,330.69 - Step 4: Simplify right side
487,294.24x = 190,520,593,676.16 - Step 5: Solve for x
x = 190,520,593,676.16/487,294.24 - Step 6: Final answer
x = 390,976.49
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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.