Finding the Fourth Proportional to 824,828.48, 1,138,343.20 and 462,313.92
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Solution
The fourth proportional to 824,828.48, 1,138,343.20 and 462,313.92 is: 638,037.99
Step by Step Solution
- Step 1: Write the proportion equation
824,828.48 : 1,138,343.20 = 462,313.92 : x - Step 2: Convert to fraction form
824,828.48/1,138,343.20 = 462,313.92/x - Step 3: Cross multiply
824,828.48x = 1,138,343.20 × 462,313.92 - Step 4: Simplify right side
824,828.48x = 526,271,907,097.34 - Step 5: Solve for x
x = 526,271,907,097.34/824,828.48 - Step 6: Final answer
x = 638,037.99
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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.