Finding the Fourth Proportional to 761,029, 1,050,207.15 and 421,489.96
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Solution
The fourth proportional to 761,029, 1,050,207.15 and 421,489.96 is: 581,649.02
Step by Step Solution
- Step 1: Write the proportion equation
761,029 : 1,050,207.15 = 421,489.96 : x - Step 2: Convert to fraction form
761,029/1,050,207.15 = 421,489.96/x - Step 3: Cross multiply
761,029x = 1,050,207.15 × 421,489.96 - Step 4: Simplify right side
761,029x = 442,651,769,645.21 - Step 5: Solve for x
x = 442,651,769,645.21/761,029 - Step 6: Final answer
x = 581,649.02
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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.