Finding the Fourth Proportional to 505,701.35, 697,889.12 and 290,841.62
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Solution
The fourth proportional to 505,701.35, 697,889.12 and 290,841.62 is: 401,373.66
Step by Step Solution
- Step 1: Write the proportion equation
505,701.35 : 697,889.12 = 290,841.62 : x - Step 2: Convert to fraction form
505,701.35/697,889.12 = 290,841.62/x - Step 3: Cross multiply
505,701.35x = 697,889.12 × 290,841.62 - Step 4: Simplify right side
505,701.35x = 202,975,202,241.17 - Step 5: Solve for x
x = 202,975,202,241.17/505,701.35 - Step 6: Final answer
x = 401,373.66
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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.