Finding the Fourth Proportional to 927,901.35, 1,391,510.61 and 320,535.09
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Solution
The fourth proportional to 927,901.35, 1,391,510.61 and 320,535.09 is: 480,684.70
Step by Step Solution
- Step 1: Write the proportion equation
927,901.35 : 1,391,510.61 = 320,535.09 : x - Step 2: Convert to fraction form
927,901.35/1,391,510.61 = 320,535.09/x - Step 3: Cross multiply
927,901.35x = 1,391,510.61 × 320,535.09 - Step 4: Simplify right side
927,901.35x = 446,027,978,612.31 - Step 5: Solve for x
x = 446,027,978,612.31/927,901.35 - Step 6: Final answer
x = 480,684.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.