Finding the Fourth Proportional to 920,155.18, 1,269,872.16 and 557,610.76
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Solution
The fourth proportional to 920,155.18, 1,269,872.16 and 557,610.76 is: 769,538.00
Step by Step Solution
- Step 1: Write the proportion equation
920,155.18 : 1,269,872.16 = 557,610.76 : x - Step 2: Convert to fraction form
920,155.18/1,269,872.16 = 557,610.76/x - Step 3: Cross multiply
920,155.18x = 1,269,872.16 × 557,610.76 - Step 4: Simplify right side
920,155.18x = 708,094,380,240.44 - Step 5: Solve for x
x = 708,094,380,240.44/920,155.18 - Step 6: Final answer
x = 769,538.00
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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.