Finding the Fourth Proportional to 420,562.17, 580,366.76 and 229,578.75
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Solution
The fourth proportional to 420,562.17, 580,366.76 and 229,578.75 is: 316,813.74
Step by Step Solution
- Step 1: Write the proportion equation
420,562.17 : 580,366.76 = 229,578.75 : x - Step 2: Convert to fraction form
420,562.17/580,366.76 = 229,578.75/x - Step 3: Cross multiply
420,562.17x = 580,366.76 × 229,578.75 - Step 4: Simplify right side
420,562.17x = 133,239,874,154.46 - Step 5: Solve for x
x = 133,239,874,154.46/420,562.17 - Step 6: Final answer
x = 316,813.74
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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.