Finding the Fourth Proportional to 753,645.96, 1,040,031.19 and 414,136.08
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Solution
The fourth proportional to 753,645.96, 1,040,031.19 and 414,136.08 is: 571,507.66
Step by Step Solution
- Step 1: Write the proportion equation
753,645.96 : 1,040,031.19 = 414,136.08 : x - Step 2: Convert to fraction form
753,645.96/1,040,031.19 = 414,136.08/x - Step 3: Cross multiply
753,645.96x = 1,040,031.19 × 414,136.08 - Step 4: Simplify right side
753,645.96x = 430,714,438,033.66 - Step 5: Solve for x
x = 430,714,438,033.66/753,645.96 - Step 6: Final answer
x = 571,507.66
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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.