Finding the Fourth Proportional to 521,696.80, 782,890.80 and 297,056.80
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Solution
The fourth proportional to 521,696.80, 782,890.80 and 297,056.80 is: 445,781.99
Step by Step Solution
- Step 1: Write the proportion equation
521,696.80 : 782,890.80 = 297,056.80 : x - Step 2: Convert to fraction form
521,696.80/782,890.80 = 297,056.80/x - Step 3: Cross multiply
521,696.80x = 782,890.80 × 297,056.80 - Step 4: Simplify right side
521,696.80x = 232,563,035,797.44 - Step 5: Solve for x
x = 232,563,035,797.44/521,696.80 - Step 6: Final answer
x = 445,781.99
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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.