Finding the Fourth Proportional to 640,107.54, 883,346.58 and 368,227.80
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Solution
The fourth proportional to 640,107.54, 883,346.58 and 368,227.80 is: 508,153.31
Step by Step Solution
- Step 1: Write the proportion equation
640,107.54 : 883,346.58 = 368,227.80 : x - Step 2: Convert to fraction form
640,107.54/883,346.58 = 368,227.80/x - Step 3: Cross multiply
640,107.54x = 883,346.58 × 368,227.80 - Step 4: Simplify right side
640,107.54x = 325,272,767,790.92 - Step 5: Solve for x
x = 325,272,767,790.92/640,107.54 - Step 6: Final answer
x = 508,153.31
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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.