Finding the Fourth Proportional to 512,133.20, 767,543.70 and 455,708.60
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Solution
The fourth proportional to 512,133.20, 767,543.70 and 455,708.60 is: 682,979.09
Step by Step Solution
- Step 1: Write the proportion equation
512,133.20 : 767,543.70 = 455,708.60 : x - Step 2: Convert to fraction form
512,133.20/767,543.70 = 455,708.60/x - Step 3: Cross multiply
512,133.20x = 767,543.70 × 455,708.60 - Step 4: Simplify right side
512,133.20x = 349,776,264,965.82 - Step 5: Solve for x
x = 349,776,264,965.82/512,133.20 - Step 6: Final answer
x = 682,979.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.