Finding the Fourth Proportional to 534,634.17, 737,680.34 and 316,911.49
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Solution
The fourth proportional to 534,634.17, 737,680.34 and 316,911.49 is: 437,269.79
Step by Step Solution
- Step 1: Write the proportion equation
534,634.17 : 737,680.34 = 316,911.49 : x - Step 2: Convert to fraction form
534,634.17/737,680.34 = 316,911.49/x - Step 3: Cross multiply
534,634.17x = 737,680.34 × 316,911.49 - Step 4: Simplify right side
534,634.17x = 233,779,373,749.87 - Step 5: Solve for x
x = 233,779,373,749.87/534,634.17 - Step 6: Final answer
x = 437,269.79
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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.