Finding the Fourth Proportional to 880,243.68, 1,320,801.84 and 348,146.40
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Solution
The fourth proportional to 880,243.68, 1,320,801.84 and 348,146.40 is: 522,392.17
Step by Step Solution
- Step 1: Write the proportion equation
880,243.68 : 1,320,801.84 = 348,146.40 : x - Step 2: Convert to fraction form
880,243.68/1,320,801.84 = 348,146.40/x - Step 3: Cross multiply
880,243.68x = 1,320,801.84 × 348,146.40 - Step 4: Simplify right side
880,243.68x = 459,832,405,709.38 - Step 5: Solve for x
x = 459,832,405,709.38/880,243.68 - Step 6: Final answer
x = 522,392.17
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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.