Finding the Fourth Proportional to 782,838.24, 1,172,263.94 and 515,789.14
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Solution
The fourth proportional to 782,838.24, 1,172,263.94 and 515,789.14 is: 772,370.30
Step by Step Solution
- Step 1: Write the proportion equation
782,838.24 : 1,172,263.94 = 515,789.14 : x - Step 2: Convert to fraction form
782,838.24/1,172,263.94 = 515,789.14/x - Step 3: Cross multiply
782,838.24x = 1,172,263.94 × 515,789.14 - Step 4: Simplify right side
782,838.24x = 604,641,010,755.08 - Step 5: Solve for x
x = 604,641,010,755.08/782,838.24 - Step 6: Final answer
x = 772,370.30
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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.