Finding the Fourth Proportional to 656,610.12, 906,120.54 and 354,804.12
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Solution
The fourth proportional to 656,610.12, 906,120.54 and 354,804.12 is: 489,628.92
Step by Step Solution
- Step 1: Write the proportion equation
656,610.12 : 906,120.54 = 354,804.12 : x - Step 2: Convert to fraction form
656,610.12/906,120.54 = 354,804.12/x - Step 3: Cross multiply
656,610.12x = 906,120.54 × 354,804.12 - Step 4: Simplify right side
656,610.12x = 321,495,300,808.63 - Step 5: Solve for x
x = 321,495,300,808.63/656,610.12 - Step 6: Final answer
x = 489,628.92
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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.