Finding the Fourth Proportional to 455,807.70, 683,711.55 and 219,611.70
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Solution
The fourth proportional to 455,807.70, 683,711.55 and 219,611.70 is: 329,417.55
Step by Step Solution
- Step 1: Write the proportion equation
455,807.70 : 683,711.55 = 219,611.70 : x - Step 2: Convert to fraction form
455,807.70/683,711.55 = 219,611.70/x - Step 3: Cross multiply
455,807.70x = 683,711.55 × 219,611.70 - Step 4: Simplify right side
455,807.70x = 150,151,055,805.14 - Step 5: Solve for x
x = 150,151,055,805.14/455,807.70 - Step 6: Final answer
x = 329,417.55
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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.