Finding the Fourth Proportional to 668,918.23, 923,107.79 and 382,444.32
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Solution
The fourth proportional to 668,918.23, 923,107.79 and 382,444.32 is: 527,773.52
Step by Step Solution
- Step 1: Write the proportion equation
668,918.23 : 923,107.79 = 382,444.32 : x - Step 2: Convert to fraction form
668,918.23/923,107.79 = 382,444.32/x - Step 3: Cross multiply
668,918.23x = 923,107.79 × 382,444.32 - Step 4: Simplify right side
668,918.23x = 353,037,331,033.25 - Step 5: Solve for x
x = 353,037,331,033.25/668,918.23 - Step 6: Final answer
x = 527,773.52
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1.5x scale
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.