Finding the Fourth Proportional to 870,490.40, 1,305,585.20 and 230,798.58
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Solution
The fourth proportional to 870,490.40, 1,305,585.20 and 230,798.58 is: 346,157.99
Step by Step Solution
- Step 1: Write the proportion equation
870,490.40 : 1,305,585.20 = 230,798.58 : x - Step 2: Convert to fraction form
870,490.40/1,305,585.20 = 230,798.58/x - Step 3: Cross multiply
870,490.40x = 1,305,585.20 × 230,798.58 - Step 4: Simplify right side
870,490.40x = 301,327,210,229.02 - Step 5: Solve for x
x = 301,327,210,229.02/870,490.40 - Step 6: Final answer
x = 346,157.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.