Finding the Fourth Proportional to 921,162.09, 1,271,208.72 and 534,206.94
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Solution
The fourth proportional to 921,162.09, 1,271,208.72 and 534,206.94 is: 737,208.49
Step by Step Solution
- Step 1: Write the proportion equation
921,162.09 : 1,271,208.72 = 534,206.94 : x - Step 2: Convert to fraction form
921,162.09/1,271,208.72 = 534,206.94/x - Step 3: Cross multiply
921,162.09x = 1,271,208.72 × 534,206.94 - Step 4: Simplify right side
921,162.09x = 679,088,517,648.76 - Step 5: Solve for x
x = 679,088,517,648.76/921,162.09 - Step 6: Final answer
x = 737,208.49
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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.