Finding the Fourth Proportional to 626,519.54, 864,587.70 and 354,638.98
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Solution
The fourth proportional to 626,519.54, 864,587.70 and 354,638.98 is: 489,396.55
Step by Step Solution
- Step 1: Write the proportion equation
626,519.54 : 864,587.70 = 354,638.98 : x - Step 2: Convert to fraction form
626,519.54/864,587.70 = 354,638.98/x - Step 3: Cross multiply
626,519.54x = 864,587.70 × 354,638.98 - Step 4: Simplify right side
626,519.54x = 306,616,500,048.55 - Step 5: Solve for x
x = 306,616,500,048.55/626,519.54 - Step 6: Final answer
x = 489,396.55
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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.