Finding the Fourth Proportional to 419,730.76, 579,211.62 and 228,740.08
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Solution
The fourth proportional to 419,730.76, 579,211.62 and 228,740.08 is: 315,652.14
Step by Step Solution
- Step 1: Write the proportion equation
419,730.76 : 579,211.62 = 228,740.08 : x - Step 2: Convert to fraction form
419,730.76/579,211.62 = 228,740.08/x - Step 3: Cross multiply
419,730.76x = 579,211.62 × 228,740.08 - Step 4: Simplify right side
419,730.76x = 132,488,912,295.73 - Step 5: Solve for x
x = 132,488,912,295.73/419,730.76 - Step 6: Final answer
x = 315,652.14
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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.