Finding the Fourth Proportional to 1,073,172.71, 1,480,655.40 and 643,295.99
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Solution
The fourth proportional to 1,073,172.71, 1,480,655.40 and 643,295.99 is: 887,554.88
Step by Step Solution
- Step 1: Write the proportion equation
1,073,172.71 : 1,480,655.40 = 643,295.99 : x - Step 2: Convert to fraction form
1,073,172.71/1,480,655.40 = 643,295.99/x - Step 3: Cross multiply
1,073,172.71x = 1,480,655.40 × 643,295.99 - Step 4: Simplify right side
1,073,172.71x = 952,499,682,681.13 - Step 5: Solve for x
x = 952,499,682,681.13/1,073,172.71 - Step 6: Final answer
x = 887,554.88
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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.