Finding the Fourth Proportional to 655,814.72, 905,027.40 and 369,339.68
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Solution
The fourth proportional to 655,814.72, 905,027.40 and 369,339.68 is: 509,690.50
Step by Step Solution
- Step 1: Write the proportion equation
655,814.72 : 905,027.40 = 369,339.68 : x - Step 2: Convert to fraction form
655,814.72/905,027.40 = 369,339.68/x - Step 3: Cross multiply
655,814.72x = 905,027.40 × 369,339.68 - Step 4: Simplify right side
655,814.72x = 334,262,530,307.23 - Step 5: Solve for x
x = 334,262,530,307.23/655,814.72 - Step 6: Final answer
x = 509,690.50
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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.