Finding the Fourth Proportional to 587,120.91, 881,031.29 and 213,173.07
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Solution
The fourth proportional to 587,120.91, 881,031.29 and 213,173.07 is: 319,886.66
Step by Step Solution
- Step 1: Write the proportion equation
587,120.91 : 881,031.29 = 213,173.07 : x - Step 2: Convert to fraction form
587,120.91/881,031.29 = 213,173.07/x - Step 3: Cross multiply
587,120.91x = 881,031.29 × 213,173.07 - Step 4: Simplify right side
587,120.91x = 187,812,144,855.36 - Step 5: Solve for x
x = 187,812,144,855.36/587,120.91 - Step 6: Final answer
x = 319,886.66
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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.