Finding the Fourth Proportional to 1,265,861.70, 1,898,959.40 and 412,634.41
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Solution
The fourth proportional to 1,265,861.70, 1,898,959.40 and 412,634.41 is: 619,005.99
Step by Step Solution
- Step 1: Write the proportion equation
1,265,861.70 : 1,898,959.40 = 412,634.41 : x - Step 2: Convert to fraction form
1,265,861.70/1,898,959.40 = 412,634.41/x - Step 3: Cross multiply
1,265,861.70x = 1,898,959.40 × 412,634.41 - Step 4: Simplify right side
1,265,861.70x = 783,575,982,035.52 - Step 5: Solve for x
x = 783,575,982,035.52/1,265,861.70 - Step 6: Final answer
x = 619,005.99
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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.