Finding the Fourth Proportional to 512,830.35, 768,829.32 and 213,534.84
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Solution
The fourth proportional to 512,830.35, 768,829.32 and 213,534.84 is: 320,128.96
Step by Step Solution
- Step 1: Write the proportion equation
512,830.35 : 768,829.32 = 213,534.84 : x - Step 2: Convert to fraction form
512,830.35/768,829.32 = 213,534.84/x - Step 3: Cross multiply
512,830.35x = 768,829.32 × 213,534.84 - Step 4: Simplify right side
512,830.35x = 164,171,845,833.51 - Step 5: Solve for x
x = 164,171,845,833.51/512,830.35 - Step 6: Final answer
x = 320,128.96
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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.