Finding the Fourth Proportional to 763,278.63, 1,053,277.35 and 419,113.20
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Solution
The fourth proportional to 763,278.63, 1,053,277.35 and 419,113.20 is: 578,350.32
Step by Step Solution
- Step 1: Write the proportion equation
763,278.63 : 1,053,277.35 = 419,113.20 : x - Step 2: Convert to fraction form
763,278.63/1,053,277.35 = 419,113.20/x - Step 3: Cross multiply
763,278.63x = 1,053,277.35 × 419,113.20 - Step 4: Simplify right side
763,278.63x = 441,442,440,646.02 - Step 5: Solve for x
x = 441,442,440,646.02/763,278.63 - Step 6: Final answer
x = 578,350.32
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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.