Finding the Fourth Proportional to 742,367.84, 1,024,470.32 and 402,836.09
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Solution
The fourth proportional to 742,367.84, 1,024,470.32 and 402,836.09 is: 555,915.26
Step by Step Solution
- Step 1: Write the proportion equation
742,367.84 : 1,024,470.32 = 402,836.09 : x - Step 2: Convert to fraction form
742,367.84/1,024,470.32 = 402,836.09/x - Step 3: Cross multiply
742,367.84x = 1,024,470.32 × 402,836.09 - Step 4: Simplify right side
742,367.84x = 412,693,610,893.32 - Step 5: Solve for x
x = 412,693,610,893.32/742,367.84 - Step 6: Final answer
x = 555,915.26
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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.