Finding the Fourth Proportional to 409,207.48, 564,510.74 and 317,938.84
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Solution
The fourth proportional to 409,207.48, 564,510.74 and 317,938.84 is: 438,603.64
Step by Step Solution
- Step 1: Write the proportion equation
409,207.48 : 564,510.74 = 317,938.84 : x - Step 2: Convert to fraction form
409,207.48/564,510.74 = 317,938.84/x - Step 3: Cross multiply
409,207.48x = 564,510.74 × 317,938.84 - Step 4: Simplify right side
409,207.48x = 179,479,889,843.14 - Step 5: Solve for x
x = 179,479,889,843.14/409,207.48 - Step 6: Final answer
x = 438,603.64
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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.