Finding the Fourth Proportional to 749,986.29, 1,125,090.22 and 217,438.12
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Solution
The fourth proportional to 749,986.29, 1,125,090.22 and 217,438.12 is: 326,189.30
Step by Step Solution
- Step 1: Write the proportion equation
749,986.29 : 1,125,090.22 = 217,438.12 : x - Step 2: Convert to fraction form
749,986.29/1,125,090.22 = 217,438.12/x - Step 3: Cross multiply
749,986.29x = 1,125,090.22 × 217,438.12 - Step 4: Simplify right side
749,986.29x = 244,637,503,537.65 - Step 5: Solve for x
x = 244,637,503,537.65/749,986.29 - Step 6: Final answer
x = 326,189.30
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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.