Finding the Fourth Proportional to 636,143.09, 877,865.65 and 349,657.02
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Solution
The fourth proportional to 636,143.09, 877,865.65 and 349,657.02 is: 482,520.20
Step by Step Solution
- Step 1: Write the proportion equation
636,143.09 : 877,865.65 = 349,657.02 : x - Step 2: Convert to fraction form
636,143.09/877,865.65 = 349,657.02/x - Step 3: Cross multiply
636,143.09x = 877,865.65 × 349,657.02 - Step 4: Simplify right side
636,143.09x = 306,951,886,265.22 - Step 5: Solve for x
x = 306,951,886,265.22/636,143.09 - Step 6: Final answer
x = 482,520.20
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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.