Finding the Fourth Proportional to 509,385.70, 702,911.11 and 294,539.68
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Solution
The fourth proportional to 509,385.70, 702,911.11 and 294,539.68 is: 406,440.96
Step by Step Solution
- Step 1: Write the proportion equation
509,385.70 : 702,911.11 = 294,539.68 : x - Step 2: Convert to fraction form
509,385.70/702,911.11 = 294,539.68/x - Step 3: Cross multiply
509,385.70x = 702,911.11 × 294,539.68 - Step 4: Simplify right side
509,385.70x = 207,035,213,407.85 - Step 5: Solve for x
x = 207,035,213,407.85/509,385.70 - Step 6: Final answer
x = 406,440.96
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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.