Finding the Fourth Proportional to 878,237.15, 1,211,596.05 and 587,942.21
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Solution
The fourth proportional to 878,237.15, 1,211,596.05 and 587,942.21 is: 811,111.75
Step by Step Solution
- Step 1: Write the proportion equation
878,237.15 : 1,211,596.05 = 587,942.21 : x - Step 2: Convert to fraction form
878,237.15/1,211,596.05 = 587,942.21/x - Step 3: Cross multiply
878,237.15x = 1,211,596.05 × 587,942.21 - Step 4: Simplify right side
878,237.15x = 712,348,464,498.04 - Step 5: Solve for x
x = 712,348,464,498.04/878,237.15 - Step 6: Final answer
x = 811,111.75
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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.