Finding the Fourth Proportional to 743,496.42, 1,115,242.58 and 211,017.96
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Solution
The fourth proportional to 743,496.42, 1,115,242.58 and 211,017.96 is: 316,526.36
Step by Step Solution
- Step 1: Write the proportion equation
743,496.42 : 1,115,242.58 = 211,017.96 : x - Step 2: Convert to fraction form
743,496.42/1,115,242.58 = 211,017.96/x - Step 3: Cross multiply
743,496.42x = 1,115,242.58 × 211,017.96 - Step 4: Simplify right side
743,496.42x = 235,336,214,136.74 - Step 5: Solve for x
x = 235,336,214,136.74/743,496.42 - Step 6: Final answer
x = 316,526.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.