Finding the Fourth Proportional to 634,143.12, 875,117.28 and 347,657.07
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Solution
The fourth proportional to 634,143.12, 875,117.28 and 347,657.07 is: 479,766.63
Step by Step Solution
- Step 1: Write the proportion equation
634,143.12 : 875,117.28 = 347,657.07 : x - Step 2: Convert to fraction form
634,143.12/875,117.28 = 347,657.07/x - Step 3: Cross multiply
634,143.12x = 875,117.28 × 347,657.07 - Step 4: Simplify right side
634,143.12x = 304,240,709,471.17 - Step 5: Solve for x
x = 304,240,709,471.17/634,143.12 - Step 6: Final answer
x = 479,766.63
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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.