Finding the Fourth Proportional to 2,389,962.60, 3,298,106.88 and 1,302,243.12
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Solution
The fourth proportional to 2,389,962.60, 3,298,106.88 and 1,302,243.12 is: 1,797,072.89
Step by Step Solution
- Step 1: Write the proportion equation
2,389,962.60 : 3,298,106.88 = 1,302,243.12 : x - Step 2: Convert to fraction form
2,389,962.60/3,298,106.88 = 1,302,243.12/x - Step 3: Cross multiply
2,389,962.60x = 3,298,106.88 × 1,302,243.12 - Step 4: Simplify right side
2,389,962.60x = 4,294,936,993,504.67 - Step 5: Solve for x
x = 4,294,936,993,504.67/2,389,962.60 - Step 6: Final answer
x = 1,797,072.89
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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.