Finding the Fourth Proportional to 911,247.12, 1,257,525.12 and 497,789.60
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Solution
The fourth proportional to 911,247.12, 1,257,525.12 and 497,789.60 is: 686,951.88
Step by Step Solution
- Step 1: Write the proportion equation
911,247.12 : 1,257,525.12 = 497,789.60 : x - Step 2: Convert to fraction form
911,247.12/1,257,525.12 = 497,789.60/x - Step 3: Cross multiply
911,247.12x = 1,257,525.12 × 497,789.60 - Step 4: Simplify right side
911,247.12x = 625,982,926,474.75 - Step 5: Solve for x
x = 625,982,926,474.75/911,247.12 - Step 6: Final answer
x = 686,951.88
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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.