Finding the Fourth Proportional to 765,722.74, 1,056,679.41 and 426,183.70
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Solution
The fourth proportional to 765,722.74, 1,056,679.41 and 426,183.70 is: 588,123.50
Step by Step Solution
- Step 1: Write the proportion equation
765,722.74 : 1,056,679.41 = 426,183.70 : x - Step 2: Convert to fraction form
765,722.74/1,056,679.41 = 426,183.70/x - Step 3: Cross multiply
765,722.74x = 1,056,679.41 × 426,183.70 - Step 4: Simplify right side
765,722.74x = 450,339,540,667.62 - Step 5: Solve for x
x = 450,339,540,667.62/765,722.74 - Step 6: Final answer
x = 588,123.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.