Finding the Fourth Proportional to 905,260.36, 1,357,888.68 and 231,341.60
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Solution
The fourth proportional to 905,260.36, 1,357,888.68 and 231,341.60 is: 347,011.92
Step by Step Solution
- Step 1: Write the proportion equation
905,260.36 : 1,357,888.68 = 231,341.60 : x - Step 2: Convert to fraction form
905,260.36/1,357,888.68 = 231,341.60/x - Step 3: Cross multiply
905,260.36x = 1,357,888.68 × 231,341.60 - Step 4: Simplify right side
905,260.36x = 314,136,139,853.09 - Step 5: Solve for x
x = 314,136,139,853.09/905,260.36 - Step 6: Final answer
x = 347,011.92
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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.