Finding the Fourth Proportional to 957,548.70, 1,320,998.36 and 630,439.74
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Solution
The fourth proportional to 957,548.70, 1,320,998.36 and 630,439.74 is: 869,731.07
Step by Step Solution
- Step 1: Write the proportion equation
957,548.70 : 1,320,998.36 = 630,439.74 : x - Step 2: Convert to fraction form
957,548.70/1,320,998.36 = 630,439.74/x - Step 3: Cross multiply
957,548.70x = 1,320,998.36 × 630,439.74 - Step 4: Simplify right side
957,548.70x = 832,809,859,466.63 - Step 5: Solve for x
x = 832,809,859,466.63/957,548.70 - Step 6: Final answer
x = 869,731.07
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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.