Finding the Fourth Proportional to 927,629.70, 1,391,444.55 and 455,237.70
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Solution
The fourth proportional to 927,629.70, 1,391,444.55 and 455,237.70 is: 682,856.55
Step by Step Solution
- Step 1: Write the proportion equation
927,629.70 : 1,391,444.55 = 455,237.70 : x - Step 2: Convert to fraction form
927,629.70/1,391,444.55 = 455,237.70/x - Step 3: Cross multiply
927,629.70x = 1,391,444.55 × 455,237.70 - Step 4: Simplify right side
927,629.70x = 633,438,016,619.54 - Step 5: Solve for x
x = 633,438,016,619.54/927,629.70 - Step 6: Final answer
x = 682,856.55
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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.