Finding the Fourth Proportional to 447,775.40, 671,663.10 and 306,057.80
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Solution
The fourth proportional to 447,775.40, 671,663.10 and 306,057.80 is: 459,086.70
Step by Step Solution
- Step 1: Write the proportion equation
447,775.40 : 671,663.10 = 306,057.80 : x - Step 2: Convert to fraction form
447,775.40/671,663.10 = 306,057.80/x - Step 3: Cross multiply
447,775.40x = 671,663.10 × 306,057.80 - Step 4: Simplify right side
447,775.40x = 205,567,730,727.18 - Step 5: Solve for x
x = 205,567,730,727.18/447,775.40 - Step 6: Final answer
x = 459,086.70
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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.