Finding the Fourth Proportional to 759,724.65, 1,048,439.43 and 457,938.09
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Solution
The fourth proportional to 759,724.65, 1,048,439.43 and 457,938.09 is: 631,966.27
Step by Step Solution
- Step 1: Write the proportion equation
759,724.65 : 1,048,439.43 = 457,938.09 : x - Step 2: Convert to fraction form
759,724.65/1,048,439.43 = 457,938.09/x - Step 3: Cross multiply
759,724.65x = 1,048,439.43 × 457,938.09 - Step 4: Simplify right side
759,724.65x = 480,120,350,054.89 - Step 5: Solve for x
x = 480,120,350,054.89/759,724.65 - Step 6: Final answer
x = 631,966.27
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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.