Finding the Fourth Proportional to 1,312,651.57, 1,811,448.44 and 731,867.80
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Solution
The fourth proportional to 1,312,651.57, 1,811,448.44 and 731,867.80 is: 1,009,971.58
Step by Step Solution
- Step 1: Write the proportion equation
1,312,651.57 : 1,811,448.44 = 731,867.80 : x - Step 2: Convert to fraction form
1,312,651.57/1,811,448.44 = 731,867.80/x - Step 3: Cross multiply
1,312,651.57x = 1,811,448.44 × 731,867.80 - Step 4: Simplify right side
1,312,651.57x = 1,325,740,784,596.23 - Step 5: Solve for x
x = 1,325,740,784,596.23/1,312,651.57 - Step 6: Final answer
x = 1,009,971.58
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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.