Finding the Fourth Proportional to 718,266.36, 991,214.34 and 395,987.88
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Solution
The fourth proportional to 718,266.36, 991,214.34 and 395,987.88 is: 546,467.00
Step by Step Solution
- Step 1: Write the proportion equation
718,266.36 : 991,214.34 = 395,987.88 : x - Step 2: Convert to fraction form
718,266.36/991,214.34 = 395,987.88/x - Step 3: Cross multiply
718,266.36x = 991,214.34 × 395,987.88 - Step 4: Simplify right side
718,266.36x = 392,508,865,122.20 - Step 5: Solve for x
x = 392,508,865,122.20/718,266.36 - Step 6: Final answer
x = 546,467.00
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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.