Finding the Fourth Proportional to 488,655.09, 732,992.36 and 321,243.21
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Solution
The fourth proportional to 488,655.09, 732,992.36 and 321,243.21 is: 481,871.20
Step by Step Solution
- Step 1: Write the proportion equation
488,655.09 : 732,992.36 = 321,243.21 : x - Step 2: Convert to fraction form
488,655.09/732,992.36 = 321,243.21/x - Step 3: Cross multiply
488,655.09x = 732,992.36 × 321,243.21 - Step 4: Simplify right side
488,655.09x = 235,468,817,025.66 - Step 5: Solve for x
x = 235,468,817,025.66/488,655.09 - Step 6: Final answer
x = 481,871.20
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1.5x scale
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.