Finding the Fourth Proportional to 870,719.19, 1,201,557.72 and 483,554.58
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Solution
The fourth proportional to 870,719.19, 1,201,557.72 and 483,554.58 is: 667,286.02
Step by Step Solution
- Step 1: Write the proportion equation
870,719.19 : 1,201,557.72 = 483,554.58 : x - Step 2: Convert to fraction form
870,719.19/1,201,557.72 = 483,554.58/x - Step 3: Cross multiply
870,719.19x = 1,201,557.72 × 483,554.58 - Step 4: Simplify right side
870,719.19x = 581,018,738,640.36 - Step 5: Solve for x
x = 581,018,738,640.36/870,719.19 - Step 6: Final answer
x = 667,286.02
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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.