Finding the Fourth Proportional to 742,387.54, 1,024,497.60 and 402,855.82
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Solution
The fourth proportional to 742,387.54, 1,024,497.60 and 402,855.82 is: 555,942.55
Step by Step Solution
- Step 1: Write the proportion equation
742,387.54 : 1,024,497.60 = 402,855.82 : x - Step 2: Convert to fraction form
742,387.54/1,024,497.60 = 402,855.82/x - Step 3: Cross multiply
742,387.54x = 1,024,497.60 × 402,855.82 - Step 4: Simplify right side
742,387.54x = 412,724,820,736.03 - Step 5: Solve for x
x = 412,724,820,736.03/742,387.54 - Step 6: Final answer
x = 555,942.55
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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.