Finding the Fourth Proportional to 1,550,356.68, 2,139,011.37 and 905,311.56
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Solution
The fourth proportional to 1,550,356.68, 2,139,011.37 and 905,311.56 is: 1,249,049.17
Step by Step Solution
- Step 1: Write the proportion equation
1,550,356.68 : 2,139,011.37 = 905,311.56 : x - Step 2: Convert to fraction form
1,550,356.68/2,139,011.37 = 905,311.56/x - Step 3: Cross multiply
1,550,356.68x = 2,139,011.37 × 905,311.56 - Step 4: Simplify right side
1,550,356.68x = 1,936,471,720,232.44 - Step 5: Solve for x
x = 1,936,471,720,232.44/1,550,356.68 - Step 6: Final answer
x = 1,249,049.17
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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.