Finding the Fourth Proportional to 455,817.70, 683,726.55 and 219,621.70
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Solution
The fourth proportional to 455,817.70, 683,726.55 and 219,621.70 is: 329,432.55
Step by Step Solution
- Step 1: Write the proportion equation
455,817.70 : 683,726.55 = 219,621.70 : x - Step 2: Convert to fraction form
455,817.70/683,726.55 = 219,621.70/x - Step 3: Cross multiply
455,817.70x = 683,726.55 × 219,621.70 - Step 4: Simplify right side
455,817.70x = 150,161,187,246.14 - Step 5: Solve for x
x = 150,161,187,246.14/455,817.70 - Step 6: Final answer
x = 329,432.55
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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.