Finding the Fourth Proportional to 455,595.20, 683,392.80 and 403,107.20
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Solution
The fourth proportional to 455,595.20, 683,392.80 and 403,107.20 is: 604,660.80
Step by Step Solution
- Step 1: Write the proportion equation
455,595.20 : 683,392.80 = 403,107.20 : x - Step 2: Convert to fraction form
455,595.20/683,392.80 = 403,107.20/x - Step 3: Cross multiply
455,595.20x = 683,392.80 × 403,107.20 - Step 4: Simplify right side
455,595.20x = 275,480,558,108.16 - Step 5: Solve for x
x = 275,480,558,108.16/455,595.20 - Step 6: Final answer
x = 604,660.80
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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.