Finding the Fourth Proportional to 634,876.18, 876,139.84 and 348,422.92
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Solution
The fourth proportional to 634,876.18, 876,139.84 and 348,422.92 is: 480,829.51
Step by Step Solution
- Step 1: Write the proportion equation
634,876.18 : 876,139.84 = 348,422.92 : x - Step 2: Convert to fraction form
634,876.18/876,139.84 = 348,422.92/x - Step 3: Cross multiply
634,876.18x = 876,139.84 × 348,422.92 - Step 4: Simplify right side
634,876.18x = 305,267,199,626.31 - Step 5: Solve for x
x = 305,267,199,626.31/634,876.18 - Step 6: Final answer
x = 480,829.51
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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.