Finding the Fourth Proportional to 455,501.80, 683,252.70 and 315,533.80
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Solution
The fourth proportional to 455,501.80, 683,252.70 and 315,533.80 is: 473,300.70
Step by Step Solution
- Step 1: Write the proportion equation
455,501.80 : 683,252.70 = 315,533.80 : x - Step 2: Convert to fraction form
455,501.80/683,252.70 = 315,533.80/x - Step 3: Cross multiply
455,501.80x = 683,252.70 × 315,533.80 - Step 4: Simplify right side
455,501.80x = 215,589,320,791.26 - Step 5: Solve for x
x = 215,589,320,791.26/455,501.80 - Step 6: Final answer
x = 473,300.70
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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.