Finding the Fourth Proportional to 4,310,480.40, 6,465,486.20 and 1,318,664.40
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Solution
The fourth proportional to 4,310,480.40, 6,465,486.20 and 1,318,664.40 is: 1,977,924.89
Step by Step Solution
- Step 1: Write the proportion equation
4,310,480.40 : 6,465,486.20 = 1,318,664.40 : x - Step 2: Convert to fraction form
4,310,480.40/6,465,486.20 = 1,318,664.40/x - Step 3: Cross multiply
4,310,480.40x = 6,465,486.20 × 1,318,664.40 - Step 4: Simplify right side
4,310,480.40x = 8,525,806,480,631.28 - Step 5: Solve for x
x = 8,525,806,480,631.28/4,310,480.40 - Step 6: Final answer
x = 1,977,924.89
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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.