Finding the Fourth Proportional to 870,716.18, 1,201,553.60 and 483,551.57
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Solution
The fourth proportional to 870,716.18, 1,201,553.60 and 483,551.57 is: 667,281.88
Step by Step Solution
- Step 1: Write the proportion equation
870,716.18 : 1,201,553.60 = 483,551.57 : x - Step 2: Convert to fraction form
870,716.18/1,201,553.60 = 483,551.57/x - Step 3: Cross multiply
870,716.18x = 1,201,553.60 × 483,551.57 - Step 4: Simplify right side
870,716.18x = 581,013,130,305.28 - Step 5: Solve for x
x = 581,013,130,305.28/870,716.18 - Step 6: Final answer
x = 667,281.88
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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.