Finding the Fourth Proportional to 513,646.20, 708,813.84 and 284,199.84
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Solution
The fourth proportional to 513,646.20, 708,813.84 and 284,199.84 is: 392,185.87
Step by Step Solution
- Step 1: Write the proportion equation
513,646.20 : 708,813.84 = 284,199.84 : x - Step 2: Convert to fraction form
513,646.20/708,813.84 = 284,199.84/x - Step 3: Cross multiply
513,646.20x = 708,813.84 × 284,199.84 - Step 4: Simplify right side
513,646.20x = 201,444,779,917.79 - Step 5: Solve for x
x = 201,444,779,917.79/513,646.20 - Step 6: Final answer
x = 392,185.87
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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.