Finding the Fourth Proportional to 1,293,397.56, 1,784,943.69 and 720,437.99
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Solution
The fourth proportional to 1,293,397.56, 1,784,943.69 and 720,437.99 is: 994,235.09
Step by Step Solution
- Step 1: Write the proportion equation
1,293,397.56 : 1,784,943.69 = 720,437.99 : x - Step 2: Convert to fraction form
1,293,397.56/1,784,943.69 = 720,437.99/x - Step 3: Cross multiply
1,293,397.56x = 1,784,943.69 × 720,437.99 - Step 4: Simplify right side
1,293,397.56x = 1,285,941,235,362.06 - Step 5: Solve for x
x = 1,285,941,235,362.06/1,293,397.56 - Step 6: Final answer
x = 994,235.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.