Finding the Fourth Proportional to 838,190.09, 1,156,701.44 and 456,215.96
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Solution
The fourth proportional to 838,190.09, 1,156,701.44 and 456,215.96 is: 629,577.54
Step by Step Solution
- Step 1: Write the proportion equation
838,190.09 : 1,156,701.44 = 456,215.96 : x - Step 2: Convert to fraction form
838,190.09/1,156,701.44 = 456,215.96/x - Step 3: Cross multiply
838,190.09x = 1,156,701.44 × 456,215.96 - Step 4: Simplify right side
838,190.09x = 527,705,657,882.98 - Step 5: Solve for x
x = 527,705,657,882.98/838,190.09 - Step 6: Final answer
x = 629,577.54
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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.