Finding the Fourth Proportional to 617,451.36, 851,266.08 and 445,225.20
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Solution
The fourth proportional to 617,451.36, 851,266.08 and 445,225.20 is: 613,821.81
Step by Step Solution
- Step 1: Write the proportion equation
617,451.36 : 851,266.08 = 445,225.20 : x - Step 2: Convert to fraction form
617,451.36/851,266.08 = 445,225.20/x - Step 3: Cross multiply
617,451.36x = 851,266.08 × 445,225.20 - Step 4: Simplify right side
617,451.36x = 379,005,110,721.22 - Step 5: Solve for x
x = 379,005,110,721.22/617,451.36 - Step 6: Final answer
x = 613,821.81
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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.