Finding the Fourth Proportional to 881,178.27, 1,216,021.77 and 499,204.14
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Solution
The fourth proportional to 881,178.27, 1,216,021.77 and 499,204.14 is: 688,899.31
Step by Step Solution
- Step 1: Write the proportion equation
881,178.27 : 1,216,021.77 = 499,204.14 : x - Step 2: Convert to fraction form
881,178.27/1,216,021.77 = 499,204.14/x - Step 3: Cross multiply
881,178.27x = 1,216,021.77 × 499,204.14 - Step 4: Simplify right side
881,178.27x = 607,043,101,914.13 - Step 5: Solve for x
x = 607,043,101,914.13/881,178.27 - Step 6: Final answer
x = 688,899.31
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1.5x scale
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.