Finding the Fourth Proportional to 611,491.62, 843,830.08 and 339,576.85
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Solution
The fourth proportional to 611,491.62, 843,830.08 and 339,576.85 is: 468,600.30
Step by Step Solution
- Step 1: Write the proportion equation
611,491.62 : 843,830.08 = 339,576.85 : x - Step 2: Convert to fraction form
611,491.62/843,830.08 = 339,576.85/x - Step 3: Cross multiply
611,491.62x = 843,830.08 × 339,576.85 - Step 4: Simplify right side
611,491.62x = 286,545,157,543.13 - Step 5: Solve for x
x = 286,545,157,543.13/611,491.62 - Step 6: Final answer
x = 468,600.30
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1.5x scale
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.