Finding the Fourth Proportional to 1,581,072.68, 2,181,877.80 and 855,920.18
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Solution
The fourth proportional to 1,581,072.68, 2,181,877.80 and 855,920.18 is: 1,181,168.50
Step by Step Solution
- Step 1: Write the proportion equation
1,581,072.68 : 2,181,877.80 = 855,920.18 : x - Step 2: Convert to fraction form
1,581,072.68/2,181,877.80 = 855,920.18/x - Step 3: Cross multiply
1,581,072.68x = 2,181,877.80 × 855,920.18 - Step 4: Simplify right side
1,581,072.68x = 1,867,513,239,314.00 - Step 5: Solve for x
x = 1,867,513,239,314.00/1,581,072.68 - Step 6: Final answer
x = 1,181,168.50
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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.