Finding the Fourth Proportional to 901,042.56, 1,243,315.74 and 538,389.84
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Solution
The fourth proportional to 901,042.56, 1,243,315.74 and 538,389.84 is: 742,904.49
Step by Step Solution
- Step 1: Write the proportion equation
901,042.56 : 1,243,315.74 = 538,389.84 : x - Step 2: Convert to fraction form
901,042.56/1,243,315.74 = 538,389.84/x - Step 3: Cross multiply
901,042.56x = 1,243,315.74 × 538,389.84 - Step 4: Simplify right side
901,042.56x = 669,388,562,328.08 - Step 5: Solve for x
x = 669,388,562,328.08/901,042.56 - Step 6: Final answer
x = 742,904.49
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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.