Finding the Fourth Proportional to 931,707.84, 1,285,761.12 and 529,321.92
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Solution
The fourth proportional to 931,707.84, 1,285,761.12 and 529,321.92 is: 730,466.69
Step by Step Solution
- Step 1: Write the proportion equation
931,707.84 : 1,285,761.12 = 529,321.92 : x - Step 2: Convert to fraction form
931,707.84/1,285,761.12 = 529,321.92/x - Step 3: Cross multiply
931,707.84x = 1,285,761.12 × 529,321.92 - Step 4: Simplify right side
931,707.84x = 680,581,544,699.75 - Step 5: Solve for x
x = 680,581,544,699.75/931,707.84 - Step 6: Final answer
x = 730,466.69
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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.