Finding the Fourth Proportional to 762,578.87, 1,142,474.09 and 357,027.05
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Solution
The fourth proportional to 762,578.87, 1,142,474.09 and 357,027.05 is: 534,887.83
Step by Step Solution
- Step 1: Write the proportion equation
762,578.87 : 1,142,474.09 = 357,027.05 : x - Step 2: Convert to fraction form
762,578.87/1,142,474.09 = 357,027.05/x - Step 3: Cross multiply
762,578.87x = 1,142,474.09 × 357,027.05 - Step 4: Simplify right side
762,578.87x = 407,894,155,125.18 - Step 5: Solve for x
x = 407,894,155,125.18/762,578.87 - Step 6: Final answer
x = 534,887.83
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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.