Finding the Fourth Proportional to 1,284,439.16, 1,925,266.01 and 643,196.99
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Solution
The fourth proportional to 1,284,439.16, 1,925,266.01 and 643,196.99 is: 964,098.05
Step by Step Solution
- Step 1: Write the proportion equation
1,284,439.16 : 1,925,266.01 = 643,196.99 : x - Step 2: Convert to fraction form
1,284,439.16/1,925,266.01 = 643,196.99/x - Step 3: Cross multiply
1,284,439.16x = 1,925,266.01 × 643,196.99 - Step 4: Simplify right side
1,284,439.16x = 1,238,325,289,738.99 - Step 5: Solve for x
x = 1,238,325,289,738.99/1,284,439.16 - Step 6: Final answer
x = 964,098.05
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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.