Finding the Fourth Proportional to 1,313,876.80, 1,970,873.52 and 515,087.20
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Solution
The fourth proportional to 1,313,876.80, 1,970,873.52 and 515,087.20 is: 772,653.66
Step by Step Solution
- Step 1: Write the proportion equation
1,313,876.80 : 1,970,873.52 = 515,087.20 : x - Step 2: Convert to fraction form
1,313,876.80/1,970,873.52 = 515,087.20/x - Step 3: Cross multiply
1,313,876.80x = 1,970,873.52 × 515,087.20 - Step 4: Simplify right side
1,313,876.80x = 1,015,171,722,970.94 - Step 5: Solve for x
x = 1,015,171,722,970.94/1,313,876.80 - Step 6: Final answer
x = 772,653.66
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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.