Finding the Fourth Proportional to 455,206.20, 636,107.70 and 455,206.20
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Solution
The fourth proportional to 455,206.20, 636,107.70 and 455,206.20 is: 636,107.70
Step by Step Solution
- Step 1: Write the proportion equation
455,206.20 : 636,107.70 = 455,206.20 : x - Step 2: Convert to fraction form
455,206.20/636,107.70 = 455,206.20/x - Step 3: Cross multiply
455,206.20x = 636,107.70 × 455,206.20 - Step 4: Simplify right side
455,206.20x = 289,560,168,907.74 - Step 5: Solve for x
x = 289,560,168,907.74/455,206.20 - Step 6: Final answer
x = 636,107.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.