Finding the Fourth Proportional to 689,138.42, 1,033,817.88 and 239,986.94
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Solution
The fourth proportional to 689,138.42, 1,033,817.88 and 239,986.94 is: 360,018.80
Step by Step Solution
- Step 1: Write the proportion equation
689,138.42 : 1,033,817.88 = 239,986.94 : x - Step 2: Convert to fraction form
689,138.42/1,033,817.88 = 239,986.94/x - Step 3: Cross multiply
689,138.42x = 1,033,817.88 × 239,986.94 - Step 4: Simplify right side
689,138.42x = 248,102,784,369.40 - Step 5: Solve for x
x = 248,102,784,369.40/689,138.42 - Step 6: Final answer
x = 360,018.80
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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.