Finding the Fourth Proportional to 396,798.42, 547,588.37 and 215,510.49
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Solution
The fourth proportional to 396,798.42, 547,588.37 and 215,510.49 is: 297,408.03
Step by Step Solution
- Step 1: Write the proportion equation
396,798.42 : 547,588.37 = 215,510.49 : x - Step 2: Convert to fraction form
396,798.42/547,588.37 = 215,510.49/x - Step 3: Cross multiply
396,798.42x = 547,588.37 × 215,510.49 - Step 4: Simplify right side
396,798.42x = 118,011,038,475.78 - Step 5: Solve for x
x = 118,011,038,475.78/396,798.42 - Step 6: Final answer
x = 297,408.03
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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.