Finding the Fourth Proportional to 1,386,232.80, 2,080,270.80 and 787,192.80
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Solution
The fourth proportional to 1,386,232.80, 2,080,270.80 and 787,192.80 is: 1,181,312.54
Step by Step Solution
- Step 1: Write the proportion equation
1,386,232.80 : 2,080,270.80 = 787,192.80 : x - Step 2: Convert to fraction form
1,386,232.80/2,080,270.80 = 787,192.80/x - Step 3: Cross multiply
1,386,232.80x = 2,080,270.80 × 787,192.80 - Step 4: Simplify right side
1,386,232.80x = 1,637,574,195,810.24 - Step 5: Solve for x
x = 1,637,574,195,810.24/1,386,232.80 - Step 6: Final answer
x = 1,181,312.54
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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.