Finding the Fourth Proportional to 420,966.99, 580,934.84 and 229,983.57
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Solution
The fourth proportional to 420,966.99, 580,934.84 and 229,983.57 is: 317,377.54
Step by Step Solution
- Step 1: Write the proportion equation
420,966.99 : 580,934.84 = 229,983.57 : x - Step 2: Convert to fraction form
420,966.99/580,934.84 = 229,983.57/x - Step 3: Cross multiply
420,966.99x = 580,934.84 × 229,983.57 - Step 4: Simplify right side
420,966.99x = 133,605,467,290.66 - Step 5: Solve for x
x = 133,605,467,290.66/420,966.99 - Step 6: Final answer
x = 317,377.54
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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.