Finding the Fourth Proportional to 919,460.81, 1,379,177.39 and 413,664.62
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Solution
The fourth proportional to 919,460.81, 1,379,177.39 and 413,664.62 is: 620,490.70
Step by Step Solution
- Step 1: Write the proportion equation
919,460.81 : 1,379,177.39 = 413,664.62 : x - Step 2: Convert to fraction form
919,460.81/1,379,177.39 = 413,664.62/x - Step 3: Cross multiply
919,460.81x = 1,379,177.39 × 413,664.62 - Step 4: Simplify right side
919,460.81x = 570,516,885,085.22 - Step 5: Solve for x
x = 570,516,885,085.22/919,460.81 - Step 6: Final answer
x = 620,490.70
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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.