Finding the Fourth Proportional to 742,412.22, 1,024,523.70 and 402,880.48
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Solution
The fourth proportional to 742,412.22, 1,024,523.70 and 402,880.48 is: 555,972.26
Step by Step Solution
- Step 1: Write the proportion equation
742,412.22 : 1,024,523.70 = 402,880.48 : x - Step 2: Convert to fraction form
742,412.22/1,024,523.70 = 402,880.48/x - Step 3: Cross multiply
742,412.22x = 1,024,523.70 × 402,880.48 - Step 4: Simplify right side
742,412.22x = 412,760,600,027.38 - Step 5: Solve for x
x = 412,760,600,027.38/742,412.22 - Step 6: Final answer
x = 555,972.26
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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.