Finding the Fourth Proportional to 1,385,636.42, 2,078,430 and 438,982.55
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Solution
The fourth proportional to 1,385,636.42, 2,078,430 and 438,982.55 is: 658,466.02
Step by Step Solution
- Step 1: Write the proportion equation
1,385,636.42 : 2,078,430 = 438,982.55 : x - Step 2: Convert to fraction form
1,385,636.42/2,078,430 = 438,982.55/x - Step 3: Cross multiply
1,385,636.42x = 2,078,430 × 438,982.55 - Step 4: Simplify right side
1,385,636.42x = 912,394,501,396.50 - Step 5: Solve for x
x = 912,394,501,396.50/1,385,636.42 - Step 6: Final answer
x = 658,466.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.