Finding the Fourth Proportional to 566,403.14, 781,658.49 and 311,778.02
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Solution
The fourth proportional to 566,403.14, 781,658.49 and 311,778.02 is: 430,265.86
Step by Step Solution
- Step 1: Write the proportion equation
566,403.14 : 781,658.49 = 311,778.02 : x - Step 2: Convert to fraction form
566,403.14/781,658.49 = 311,778.02/x - Step 3: Cross multiply
566,403.14x = 781,658.49 × 311,778.02 - Step 4: Simplify right side
566,403.14x = 243,703,930,861.21 - Step 5: Solve for x
x = 243,703,930,861.21/566,403.14 - Step 6: Final answer
x = 430,265.86
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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.