Finding the Fourth Proportional to 504,430.76, 696,042.27 and 313,374.44
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Solution
The fourth proportional to 504,430.76, 696,042.27 and 313,374.44 is: 432,411.89
Step by Step Solution
- Step 1: Write the proportion equation
504,430.76 : 696,042.27 = 313,374.44 : x - Step 2: Convert to fraction form
504,430.76/696,042.27 = 313,374.44/x - Step 3: Cross multiply
504,430.76x = 696,042.27 × 313,374.44 - Step 4: Simplify right side
504,430.76x = 218,121,858,317.68 - Step 5: Solve for x
x = 218,121,858,317.68/504,430.76 - Step 6: Final answer
x = 432,411.89
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Double scale
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1.5x scale
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.