Finding the Fourth Proportional to 742,168.37, 1,024,194.34 and 402,636.62
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Solution
The fourth proportional to 742,168.37, 1,024,194.34 and 402,636.62 is: 555,639.61
Step by Step Solution
- Step 1: Write the proportion equation
742,168.37 : 1,024,194.34 = 402,636.62 : x - Step 2: Convert to fraction form
742,168.37/1,024,194.34 = 402,636.62/x - Step 3: Cross multiply
742,168.37x = 1,024,194.34 × 402,636.62 - Step 4: Simplify right side
742,168.37x = 412,378,147,280.73 - Step 5: Solve for x
x = 412,378,147,280.73/742,168.37 - Step 6: Final answer
x = 555,639.61
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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.