Finding the Fourth Proportional to 420,409.32, 580,177.18 and 229,434.99
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Solution
The fourth proportional to 420,409.32, 580,177.18 and 229,434.99 is: 316,627.01
Step by Step Solution
- Step 1: Write the proportion equation
420,409.32 : 580,177.18 = 229,434.99 : x - Step 2: Convert to fraction form
420,409.32/580,177.18 = 229,434.99/x - Step 3: Cross multiply
420,409.32x = 580,177.18 × 229,434.99 - Step 4: Simplify right side
420,409.32x = 133,112,945,491.53 - Step 5: Solve for x
x = 133,112,945,491.53/420,409.32 - Step 6: Final answer
x = 316,627.01
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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.