Finding the Fourth Proportional to 811,789.14, 1,120,387.86 and 467,558.91
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Solution
The fourth proportional to 811,789.14, 1,120,387.86 and 467,558.91 is: 645,299.75
Step by Step Solution
- Step 1: Write the proportion equation
811,789.14 : 1,120,387.86 = 467,558.91 : x - Step 2: Convert to fraction form
811,789.14/1,120,387.86 = 467,558.91/x - Step 3: Cross multiply
811,789.14x = 1,120,387.86 × 467,558.91 - Step 4: Simplify right side
811,789.14x = 523,847,326,598.83 - Step 5: Solve for x
x = 523,847,326,598.83/811,789.14 - Step 6: Final answer
x = 645,299.75
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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.