Finding the Fourth Proportional to 655,911.12, 905,212.44 and 369,487.44
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Solution
The fourth proportional to 655,911.12, 905,212.44 and 369,487.44 is: 509,923.70
Step by Step Solution
- Step 1: Write the proportion equation
655,911.12 : 905,212.44 = 369,487.44 : x - Step 2: Convert to fraction form
655,911.12/905,212.44 = 369,487.44/x - Step 3: Cross multiply
655,911.12x = 905,212.44 × 369,487.44 - Step 4: Simplify right side
655,911.12x = 334,464,627,111.75 - Step 5: Solve for x
x = 334,464,627,111.75/655,911.12 - Step 6: Final answer
x = 509,923.70
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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.