Finding the Fourth Proportional to 513,757.94, 709,128.63 and 298,939.68
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Solution
The fourth proportional to 513,757.94, 709,128.63 and 298,939.68 is: 412,619.78
Step by Step Solution
- Step 1: Write the proportion equation
513,757.94 : 709,128.63 = 298,939.68 : x - Step 2: Convert to fraction form
513,757.94/709,128.63 = 298,939.68/x - Step 3: Cross multiply
513,757.94x = 709,128.63 × 298,939.68 - Step 4: Simplify right side
513,757.94x = 211,986,685,731.04 - Step 5: Solve for x
x = 211,986,685,731.04/513,757.94 - Step 6: Final answer
x = 412,619.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.