Finding the Fourth Proportional to 438,201.54, 657,574.47 and 280,543.14
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Solution
The fourth proportional to 438,201.54, 657,574.47 and 280,543.14 is: 420,988.95
Step by Step Solution
- Step 1: Write the proportion equation
438,201.54 : 657,574.47 = 280,543.14 : x - Step 2: Convert to fraction form
438,201.54/657,574.47 = 280,543.14/x - Step 3: Cross multiply
438,201.54x = 657,574.47 × 280,543.14 - Step 4: Simplify right side
438,201.54x = 184,478,006,597.64 - Step 5: Solve for x
x = 184,478,006,597.64/438,201.54 - Step 6: Final answer
x = 420,988.95
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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.