Finding the Fourth Proportional to 993,647.70, 1,490,471.55 and 573,743.70
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Solution
The fourth proportional to 993,647.70, 1,490,471.55 and 573,743.70 is: 860,615.55
Step by Step Solution
- Step 1: Write the proportion equation
993,647.70 : 1,490,471.55 = 573,743.70 : x - Step 2: Convert to fraction form
993,647.70/1,490,471.55 = 573,743.70/x - Step 3: Cross multiply
993,647.70x = 1,490,471.55 × 573,743.70 - Step 4: Simplify right side
993,647.70x = 855,148,661,841.74 - Step 5: Solve for x
x = 855,148,661,841.74/993,647.70 - Step 6: Final answer
x = 860,615.55
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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.