Finding the Fourth Proportional to 688,388.18, 949,979.49 and 382,464.98
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Solution
The fourth proportional to 688,388.18, 949,979.49 and 382,464.98 is: 527,803.78
Step by Step Solution
- Step 1: Write the proportion equation
688,388.18 : 949,979.49 = 382,464.98 : x - Step 2: Convert to fraction form
688,388.18/949,979.49 = 382,464.98/x - Step 3: Cross multiply
688,388.18x = 949,979.49 × 382,464.98 - Step 4: Simplify right side
688,388.18x = 363,333,886,643.26 - Step 5: Solve for x
x = 363,333,886,643.26/688,388.18 - Step 6: Final answer
x = 527,803.78
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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.