Finding the Fourth Proportional to 723,229.68, 1,083,619.74 and 438,058.44
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Solution
The fourth proportional to 723,229.68, 1,083,619.74 and 438,058.44 is: 656,345.81
Step by Step Solution
- Step 1: Write the proportion equation
723,229.68 : 1,083,619.74 = 438,058.44 : x - Step 2: Convert to fraction form
723,229.68/1,083,619.74 = 438,058.44/x - Step 3: Cross multiply
723,229.68x = 1,083,619.74 × 438,058.44 - Step 4: Simplify right side
723,229.68x = 474,688,772,857.61 - Step 5: Solve for x
x = 474,688,772,857.61/723,229.68 - Step 6: Final answer
x = 656,345.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.