Finding the Fourth Proportional to 412,652.68, 618,979.02 and 272,378.50
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Solution
The fourth proportional to 412,652.68, 618,979.02 and 272,378.50 is: 408,567.75
Step by Step Solution
- Step 1: Write the proportion equation
412,652.68 : 618,979.02 = 272,378.50 : x - Step 2: Convert to fraction form
412,652.68/618,979.02 = 272,378.50/x - Step 3: Cross multiply
412,652.68x = 618,979.02 × 272,378.50 - Step 4: Simplify right side
412,652.68x = 168,596,576,999.07 - Step 5: Solve for x
x = 168,596,576,999.07/412,652.68 - Step 6: Final answer
x = 408,567.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.