Finding the Fourth Proportional to 634,877.28, 876,155.92 and 348,407.62
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Solution
The fourth proportional to 634,877.28, 876,155.92 and 348,407.62 is: 480,816.38
Step by Step Solution
- Step 1: Write the proportion equation
634,877.28 : 876,155.92 = 348,407.62 : x - Step 2: Convert to fraction form
634,877.28/876,155.92 = 348,407.62/x - Step 3: Cross multiply
634,877.28x = 876,155.92 × 348,407.62 - Step 4: Simplify right side
634,877.28x = 305,259,395,774.70 - Step 5: Solve for x
x = 305,259,395,774.70/634,877.28 - Step 6: Final answer
x = 480,816.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.