Finding the Fourth Proportional to 509,387.58, 702,958.23 and 318,512.70
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Solution
The fourth proportional to 509,387.58, 702,958.23 and 318,512.70 is: 439,549.63
Step by Step Solution
- Step 1: Write the proportion equation
509,387.58 : 702,958.23 = 318,512.70 : x - Step 2: Convert to fraction form
509,387.58/702,958.23 = 318,512.70/x - Step 3: Cross multiply
509,387.58x = 702,958.23 × 318,512.70 - Step 4: Simplify right side
509,387.58x = 223,901,123,824.52 - Step 5: Solve for x
x = 223,901,123,824.52/509,387.58 - Step 6: Final answer
x = 439,549.63
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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.