Finding the Fourth Proportional to 407,585.80, 611,378.70 and 314,273.80
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Solution
The fourth proportional to 407,585.80, 611,378.70 and 314,273.80 is: 471,410.70
Step by Step Solution
- Step 1: Write the proportion equation
407,585.80 : 611,378.70 = 314,273.80 : x - Step 2: Convert to fraction form
407,585.80/611,378.70 = 314,273.80/x - Step 3: Cross multiply
407,585.80x = 611,378.70 × 314,273.80 - Step 4: Simplify right side
407,585.80x = 192,140,307,288.06 - Step 5: Solve for x
x = 192,140,307,288.06/407,585.80 - Step 6: Final answer
x = 471,410.70
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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.