Finding the Fourth Proportional to 1,386,251.17, 1,912,901.79 and 774,350.44
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Solution
The fourth proportional to 1,386,251.17, 1,912,901.79 and 774,350.44 is: 1,068,533.88
Step by Step Solution
- Step 1: Write the proportion equation
1,386,251.17 : 1,912,901.79 = 774,350.44 : x - Step 2: Convert to fraction form
1,386,251.17/1,912,901.79 = 774,350.44/x - Step 3: Cross multiply
1,386,251.17x = 1,912,901.79 × 774,350.44 - Step 4: Simplify right side
1,386,251.17x = 1,481,256,342,763.29 - Step 5: Solve for x
x = 1,481,256,342,763.29/1,386,251.17 - Step 6: Final answer
x = 1,068,533.88
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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.