Finding the Fourth Proportional to 870,506.21, 1,201,336.09 and 483,321.65
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Solution
The fourth proportional to 870,506.21, 1,201,336.09 and 483,321.65 is: 667,004.70
Step by Step Solution
- Step 1: Write the proportion equation
870,506.21 : 1,201,336.09 = 483,321.65 : x - Step 2: Convert to fraction form
870,506.21/1,201,336.09 = 483,321.65/x - Step 3: Cross multiply
870,506.21x = 1,201,336.09 × 483,321.65 - Step 4: Simplify right side
870,506.21x = 580,631,734,008.36 - Step 5: Solve for x
x = 580,631,734,008.36/870,506.21 - Step 6: Final answer
x = 667,004.70
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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.